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Finding the Fourth Proportional to 1,592.88, 2,390.14 and 656.52

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Solution

The fourth proportional to 1,592.88, 2,390.14 and 656.52 is: 985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.88 : 2,390.14 = 656.52 : x
  2. Step 2: Convert to fraction form
    1,592.88/2,390.14 = 656.52/x
  3. Step 3: Cross multiply
    1,592.88x = 2,390.14 × 656.52
  4. Step 4: Simplify right side
    1,592.88x = 1,569,174.71
  5. Step 5: Solve for x
    x = 1,569,174.71/1,592.88
  6. Step 6: Final answer
    x = 985.12

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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.