Home / 639,144,486.40-958,716,729.60-614,062,220.80

Finding the Fourth Proportional to 639,144,486.40, 958,716,729.60 and 614,062,220.80

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Solution

The fourth proportional to 639,144,486.40, 958,716,729.60 and 614,062,220.80 is: 921,093,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,144,486.40 : 958,716,729.60 = 614,062,220.80 : x
  2. Step 2: Convert to fraction form
    639,144,486.40/958,716,729.60 = 614,062,220.80/x
  3. Step 3: Cross multiply
    639,144,486.40x = 958,716,729.60 × 614,062,220.80
  4. Step 4: Simplify right side
    639,144,486.40x = 588,711,724,096,289,024
  5. Step 5: Solve for x
    x = 588,711,724,096,289,024/639,144,486.40
  6. Step 6: Final answer
    x = 921,093,331.20

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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.