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Finding the Fourth Proportional to 1,061.57, 1,592.39 and 292.07

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Solution

The fourth proportional to 1,061.57, 1,592.39 and 292.07 is: 438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.57 : 1,592.39 = 292.07 : x
  2. Step 2: Convert to fraction form
    1,061.57/1,592.39 = 292.07/x
  3. Step 3: Cross multiply
    1,061.57x = 1,592.39 × 292.07
  4. Step 4: Simplify right side
    1,061.57x = 465,081.39
  5. Step 5: Solve for x
    x = 465,081.39/1,061.57
  6. Step 6: Final answer
    x = 438.11

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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.