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Finding the Fourth Proportional to 580,656,053.60, 870,984,080.40 and 387,164,290.40

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Solution

The fourth proportional to 580,656,053.60, 870,984,080.40 and 387,164,290.40 is: 580,746,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,656,053.60 : 870,984,080.40 = 387,164,290.40 : x
  2. Step 2: Convert to fraction form
    580,656,053.60/870,984,080.40 = 387,164,290.40/x
  3. Step 3: Cross multiply
    580,656,053.60x = 870,984,080.40 × 387,164,290.40
  4. Step 4: Simplify right side
    580,656,053.60x = 337,213,933,437,762,496
  5. Step 5: Solve for x
    x = 337,213,933,437,762,496/580,656,053.60
  6. Step 6: Final answer
    x = 580,746,435.60

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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.