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Finding the Fourth Proportional to 517,248.78, 775,935.33 and 171,043.91

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Solution

The fourth proportional to 517,248.78, 775,935.33 and 171,043.91 is: 256,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,248.78 : 775,935.33 = 171,043.91 : x
  2. Step 2: Convert to fraction form
    517,248.78/775,935.33 = 171,043.91/x
  3. Step 3: Cross multiply
    517,248.78x = 775,935.33 × 171,043.91
  4. Step 4: Simplify right side
    517,248.78x = 132,719,012,750.34
  5. Step 5: Solve for x
    x = 132,719,012,750.34/517,248.78
  6. Step 6: Final answer
    x = 256,586.42

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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.