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Finding the Fourth Proportional to 574,526.52, 861,419.61 and 274,999.86

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Solution

The fourth proportional to 574,526.52, 861,419.61 and 274,999.86 is: 412,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,526.52 : 861,419.61 = 274,999.86 : x
  2. Step 2: Convert to fraction form
    574,526.52/861,419.61 = 274,999.86/x
  3. Step 3: Cross multiply
    574,526.52x = 861,419.61 × 274,999.86
  4. Step 4: Simplify right side
    574,526.52x = 236,890,272,151.26
  5. Step 5: Solve for x
    x = 236,890,272,151.26/574,526.52
  6. Step 6: Final answer
    x = 412,322.61

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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.