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Finding the Fourth Proportional to 437,717.54, 656,871.65 and 171,444.81

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Solution

The fourth proportional to 437,717.54, 656,871.65 and 171,444.81 is: 257,282.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,717.54 : 656,871.65 = 171,444.81 : x
  2. Step 2: Convert to fraction form
    437,717.54/656,871.65 = 171,444.81/x
  3. Step 3: Cross multiply
    437,717.54x = 656,871.65 × 171,444.81
  4. Step 4: Simplify right side
    437,717.54x = 112,617,234,371.41
  5. Step 5: Solve for x
    x = 112,617,234,371.41/437,717.54
  6. Step 6: Final answer
    x = 257,282.89

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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.