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Finding the Fourth Proportional to 363,406,906.80, 545,110,360.20 and 363,406,906.80

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Solution

The fourth proportional to 363,406,906.80, 545,110,360.20 and 363,406,906.80 is: 545,110,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,406,906.80 : 545,110,360.20 = 363,406,906.80 : x
  2. Step 2: Convert to fraction form
    363,406,906.80/545,110,360.20 = 363,406,906.80/x
  3. Step 3: Cross multiply
    363,406,906.80x = 545,110,360.20 × 363,406,906.80
  4. Step 4: Simplify right side
    363,406,906.80x = 198,096,869,864,915,840
  5. Step 5: Solve for x
    x = 198,096,869,864,915,840/363,406,906.80
  6. Step 6: Final answer
    x = 545,110,360.20

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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.