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Finding the Fourth Proportional to 639,731,621.70, 959,597,432.55 and 596,684,900.70

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Solution

The fourth proportional to 639,731,621.70, 959,597,432.55 and 596,684,900.70 is: 895,027,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,731,621.70 : 959,597,432.55 = 596,684,900.70 : x
  2. Step 2: Convert to fraction form
    639,731,621.70/959,597,432.55 = 596,684,900.70/x
  3. Step 3: Cross multiply
    639,731,621.70x = 959,597,432.55 × 596,684,900.70
  4. Step 4: Simplify right side
    639,731,621.70x = 572,577,298,753,071,744
  5. Step 5: Solve for x
    x = 572,577,298,753,071,744/639,731,621.70
  6. Step 6: Final answer
    x = 895,027,351.05

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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.