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Finding the Fourth Proportional to 361,877,487.90, 542,816,231.85 and 361,877,487.90

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Solution

The fourth proportional to 361,877,487.90, 542,816,231.85 and 361,877,487.90 is: 542,816,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,877,487.90 : 542,816,231.85 = 361,877,487.90 : x
  2. Step 2: Convert to fraction form
    361,877,487.90/542,816,231.85 = 361,877,487.90/x
  3. Step 3: Cross multiply
    361,877,487.90x = 542,816,231.85 × 361,877,487.90
  4. Step 4: Simplify right side
    361,877,487.90x = 196,432,974,373,221,952
  5. Step 5: Solve for x
    x = 196,432,974,373,221,952/361,877,487.90
  6. Step 6: Final answer
    x = 542,816,231.85

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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.