Home / 1,069,742,406.80-1,604,613,610.20-661,595,718.80

Finding the Fourth Proportional to 1,069,742,406.80, 1,604,613,610.20 and 661,595,718.80

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Solution

The fourth proportional to 1,069,742,406.80, 1,604,613,610.20 and 661,595,718.80 is: 992,393,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,742,406.80 : 1,604,613,610.20 = 661,595,718.80 : x
  2. Step 2: Convert to fraction form
    1,069,742,406.80/1,604,613,610.20 = 661,595,718.80/x
  3. Step 3: Cross multiply
    1,069,742,406.80x = 1,604,613,610.20 × 661,595,718.80
  4. Step 4: Simplify right side
    1,069,742,406.80x = 1,061,605,494,836,531,968
  5. Step 5: Solve for x
    x = 1,061,605,494,836,531,968/1,069,742,406.80
  6. Step 6: Final answer
    x = 992,393,578.20

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Half scale
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Double scale
Find fourth proportional to 1,069,742,407.80, 1,604,613,611.70 and 661,595,719.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.