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Finding the Fourth Proportional to 1,032.91, 1,425.36 and 590.81

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Solution

The fourth proportional to 1,032.91, 1,425.36 and 590.81 is: 815.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.91 : 1,425.36 = 590.81 : x
  2. Step 2: Convert to fraction form
    1,032.91/1,425.36 = 590.81/x
  3. Step 3: Cross multiply
    1,032.91x = 1,425.36 × 590.81
  4. Step 4: Simplify right side
    1,032.91x = 842,116.94
  5. Step 5: Solve for x
    x = 842,116.94/1,032.91
  6. Step 6: Final answer
    x = 815.29

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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.