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Finding the Fourth Proportional to 363,691,510.80, 545,537,266.20 and 363,691,510.80

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Solution

The fourth proportional to 363,691,510.80, 545,537,266.20 and 363,691,510.80 is: 545,537,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,691,510.80 : 545,537,266.20 = 363,691,510.80 : x
  2. Step 2: Convert to fraction form
    363,691,510.80/545,537,266.20 = 363,691,510.80/x
  3. Step 3: Cross multiply
    363,691,510.80x = 545,537,266.20 × 363,691,510.80
  4. Step 4: Simplify right side
    363,691,510.80x = 198,407,272,541,979,808
  5. Step 5: Solve for x
    x = 198,407,272,541,979,808/363,691,510.80
  6. Step 6: Final answer
    x = 545,537,266.20

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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.