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Finding the Fourth Proportional to 591,427.52, 887,492.64 and 217,712.96

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Solution

The fourth proportional to 591,427.52, 887,492.64 and 217,712.96 is: 326,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,427.52 : 887,492.64 = 217,712.96 : x
  2. Step 2: Convert to fraction form
    591,427.52/887,492.64 = 217,712.96/x
  3. Step 3: Cross multiply
    591,427.52x = 887,492.64 × 217,712.96
  4. Step 4: Simplify right side
    591,427.52x = 193,218,649,632.61
  5. Step 5: Solve for x
    x = 193,218,649,632.61/591,427.52
  6. Step 6: Final answer
    x = 326,698.78

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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.