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Finding the Fourth Proportional to 512,487,061.80, 768,730,592.70 and 236,137,741.80

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Solution

The fourth proportional to 512,487,061.80, 768,730,592.70 and 236,137,741.80 is: 354,206,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,487,061.80 : 768,730,592.70 = 236,137,741.80 : x
  2. Step 2: Convert to fraction form
    512,487,061.80/768,730,592.70 = 236,137,741.80/x
  3. Step 3: Cross multiply
    512,487,061.80x = 768,730,592.70 × 236,137,741.80
  4. Step 4: Simplify right side
    512,487,061.80x = 181,526,306,212,753,600
  5. Step 5: Solve for x
    x = 181,526,306,212,753,600/512,487,061.80
  6. Step 6: Final answer
    x = 354,206,612.70

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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.