Home / 1,259,713,772.40-1,889,570,658.60-441,719,785.20

Finding the Fourth Proportional to 1,259,713,772.40, 1,889,570,658.60 and 441,719,785.20

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Solution

The fourth proportional to 1,259,713,772.40, 1,889,570,658.60 and 441,719,785.20 is: 662,579,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,713,772.40 : 1,889,570,658.60 = 441,719,785.20 : x
  2. Step 2: Convert to fraction form
    1,259,713,772.40/1,889,570,658.60 = 441,719,785.20/x
  3. Step 3: Cross multiply
    1,259,713,772.40x = 1,889,570,658.60 × 441,719,785.20
  4. Step 4: Simplify right side
    1,259,713,772.40x = 834,660,745,437,014,528
  5. Step 5: Solve for x
    x = 834,660,745,437,014,528/1,259,713,772.40
  6. Step 6: Final answer
    x = 662,579,677.80

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Half scale
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Double scale
Find fourth proportional to 1,259,713,773.40, 1,889,570,660.10 and 441,719,786.20
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.