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Finding the Fourth Proportional to 501,693.52, 752,655.18 and 217,431.76

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Solution

The fourth proportional to 501,693.52, 752,655.18 and 217,431.76 is: 326,197.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,693.52 : 752,655.18 = 217,431.76 : x
  2. Step 2: Convert to fraction form
    501,693.52/752,655.18 = 217,431.76/x
  3. Step 3: Cross multiply
    501,693.52x = 752,655.18 × 217,431.76
  4. Step 4: Simplify right side
    501,693.52x = 163,651,140,460.52
  5. Step 5: Solve for x
    x = 163,651,140,460.52/501,693.52
  6. Step 6: Final answer
    x = 326,197.44

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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.