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Finding the Fourth Proportional to 1,040.87, 1,436.48 and 592.88

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Solution

The fourth proportional to 1,040.87, 1,436.48 and 592.88 is: 818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.87 : 1,436.48 = 592.88 : x
  2. Step 2: Convert to fraction form
    1,040.87/1,436.48 = 592.88/x
  3. Step 3: Cross multiply
    1,040.87x = 1,436.48 × 592.88
  4. Step 4: Simplify right side
    1,040.87x = 851,660.26
  5. Step 5: Solve for x
    x = 851,660.26/1,040.87
  6. Step 6: Final answer
    x = 818.22

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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.