Home / 639,144,487.40-958,716,731.10-614,062,221.80

Finding the Fourth Proportional to 639,144,487.40, 958,716,731.10 and 614,062,221.80

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Solution

The fourth proportional to 639,144,487.40, 958,716,731.10 and 614,062,221.80 is: 921,093,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,144,487.40 : 958,716,731.10 = 614,062,221.80 : x
  2. Step 2: Convert to fraction form
    639,144,487.40/958,716,731.10 = 614,062,221.80/x
  3. Step 3: Cross multiply
    639,144,487.40x = 958,716,731.10 × 614,062,221.80
  4. Step 4: Simplify right side
    639,144,487.40x = 588,711,725,976,099,072
  5. Step 5: Solve for x
    x = 588,711,725,976,099,072/639,144,487.40
  6. Step 6: Final answer
    x = 921,093,332.70

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Double scale
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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.