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Finding the Fourth Proportional to 639,522,208.80, 959,283,313.20 and 600,780,159.90

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Solution

The fourth proportional to 639,522,208.80, 959,283,313.20 and 600,780,159.90 is: 901,170,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,522,208.80 : 959,283,313.20 = 600,780,159.90 : x
  2. Step 2: Convert to fraction form
    639,522,208.80/959,283,313.20 = 600,780,159.90/x
  3. Step 3: Cross multiply
    639,522,208.80x = 959,283,313.20 × 600,780,159.90
  4. Step 4: Simplify right side
    639,522,208.80x = 576,318,382,293,697,792
  5. Step 5: Solve for x
    x = 576,318,382,293,697,792/639,522,208.80
  6. Step 6: Final answer
    x = 901,170,239.85

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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.