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Finding the Fourth Proportional to 1,350.32, 1,863.52 and 760.88

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Solution

The fourth proportional to 1,350.32, 1,863.52 and 760.88 is: 1,050.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.32 : 1,863.52 = 760.88 : x
  2. Step 2: Convert to fraction form
    1,350.32/1,863.52 = 760.88/x
  3. Step 3: Cross multiply
    1,350.32x = 1,863.52 × 760.88
  4. Step 4: Simplify right side
    1,350.32x = 1,417,915.10
  5. Step 5: Solve for x
    x = 1,417,915.10/1,350.32
  6. Step 6: Final answer
    x = 1,050.06

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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.