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Finding the Fourth Proportional to 363,901.10, 545,851.65 and 349,385.90

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Solution

The fourth proportional to 363,901.10, 545,851.65 and 349,385.90 is: 524,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,901.10 : 545,851.65 = 349,385.90 : x
  2. Step 2: Convert to fraction form
    363,901.10/545,851.65 = 349,385.90/x
  3. Step 3: Cross multiply
    363,901.10x = 545,851.65 × 349,385.90
  4. Step 4: Simplify right side
    363,901.10x = 190,712,870,001.74
  5. Step 5: Solve for x
    x = 190,712,870,001.74/363,901.10
  6. Step 6: Final answer
    x = 524,078.85

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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.