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Finding the Fourth Proportional to 1,625.90, 2,432.61 and 932.90

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Solution

The fourth proportional to 1,625.90, 2,432.61 and 932.90 is: 1,395.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.90 : 2,432.61 = 932.90 : x
  2. Step 2: Convert to fraction form
    1,625.90/2,432.61 = 932.90/x
  3. Step 3: Cross multiply
    1,625.90x = 2,432.61 × 932.90
  4. Step 4: Simplify right side
    1,625.90x = 2,269,369.71
  5. Step 5: Solve for x
    x = 2,269,369.71/1,625.90
  6. Step 6: Final answer
    x = 1,395.77

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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.