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Finding the Fourth Proportional to 1,034.28, 1,427.31 and 592.20

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Solution

The fourth proportional to 1,034.28, 1,427.31 and 592.20 is: 817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.28 : 1,427.31 = 592.20 : x
  2. Step 2: Convert to fraction form
    1,034.28/1,427.31 = 592.20/x
  3. Step 3: Cross multiply
    1,034.28x = 1,427.31 × 592.20
  4. Step 4: Simplify right side
    1,034.28x = 845,252.98
  5. Step 5: Solve for x
    x = 845,252.98/1,034.28
  6. Step 6: Final answer
    x = 817.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.