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Finding the Fourth Proportional to 549,617.88, 824,232.42 and 261,395.58

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Solution

The fourth proportional to 549,617.88, 824,232.42 and 261,395.58 is: 392,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,617.88 : 824,232.42 = 261,395.58 : x
  2. Step 2: Convert to fraction form
    549,617.88/824,232.42 = 261,395.58/x
  3. Step 3: Cross multiply
    549,617.88x = 824,232.42 × 261,395.58
  4. Step 4: Simplify right side
    549,617.88x = 215,450,711,480.70
  5. Step 5: Solve for x
    x = 215,450,711,480.70/549,617.88
  6. Step 6: Final answer
    x = 392,000.91

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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.