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Finding the Fourth Proportional to 461,402.80, 692,104.20 and 328,542.55

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Solution

The fourth proportional to 461,402.80, 692,104.20 and 328,542.55 is: 492,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,402.80 : 692,104.20 = 328,542.55 : x
  2. Step 2: Convert to fraction form
    461,402.80/692,104.20 = 328,542.55/x
  3. Step 3: Cross multiply
    461,402.80x = 692,104.20 × 328,542.55
  4. Step 4: Simplify right side
    461,402.80x = 227,385,678,733.71
  5. Step 5: Solve for x
    x = 227,385,678,733.71/461,402.80
  6. Step 6: Final answer
    x = 492,813.83

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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.