Home / 1,069,742,406.30-1,604,613,609.45-661,595,718.30

Finding the Fourth Proportional to 1,069,742,406.30, 1,604,613,609.45 and 661,595,718.30

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Solution

The fourth proportional to 1,069,742,406.30, 1,604,613,609.45 and 661,595,718.30 is: 992,393,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,742,406.30 : 1,604,613,609.45 = 661,595,718.30 : x
  2. Step 2: Convert to fraction form
    1,069,742,406.30/1,604,613,609.45 = 661,595,718.30/x
  3. Step 3: Cross multiply
    1,069,742,406.30x = 1,604,613,609.45 × 661,595,718.30
  4. Step 4: Simplify right side
    1,069,742,406.30x = 1,061,605,493,538,028,416
  5. Step 5: Solve for x
    x = 1,061,605,493,538,028,416/1,069,742,406.30
  6. Step 6: Final answer
    x = 992,393,577.45

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Half scale
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Double scale
Find fourth proportional to 1,069,742,407.30, 1,604,613,610.95 and 661,595,719.30
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.