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Finding the Fourth Proportional to 1,026.32, 1,416.29 and 560.57

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Solution

The fourth proportional to 1,026.32, 1,416.29 and 560.57 is: 773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.32 : 1,416.29 = 560.57 : x
  2. Step 2: Convert to fraction form
    1,026.32/1,416.29 = 560.57/x
  3. Step 3: Cross multiply
    1,026.32x = 1,416.29 × 560.57
  4. Step 4: Simplify right side
    1,026.32x = 793,919.80
  5. Step 5: Solve for x
    x = 793,919.80/1,026.32
  6. Step 6: Final answer
    x = 773.56

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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.