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Finding the Fourth Proportional to 1,032.61, 1,425.01 and 560.51

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Solution

The fourth proportional to 1,032.61, 1,425.01 and 560.51 is: 773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.61 : 1,425.01 = 560.51 : x
  2. Step 2: Convert to fraction form
    1,032.61/1,425.01 = 560.51/x
  3. Step 3: Cross multiply
    1,032.61x = 1,425.01 × 560.51
  4. Step 4: Simplify right side
    1,032.61x = 798,732.36
  5. Step 5: Solve for x
    x = 798,732.36/1,032.61
  6. Step 6: Final answer
    x = 773.51

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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.