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Finding the Fourth Proportional to 1,350.34, 1,862.98 and 760.86

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Solution

The fourth proportional to 1,350.34, 1,862.98 and 760.86 is: 1,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.34 : 1,862.98 = 760.86 : x
  2. Step 2: Convert to fraction form
    1,350.34/1,862.98 = 760.86/x
  3. Step 3: Cross multiply
    1,350.34x = 1,862.98 × 760.86
  4. Step 4: Simplify right side
    1,350.34x = 1,417,466.96
  5. Step 5: Solve for x
    x = 1,417,466.96/1,350.34
  6. Step 6: Final answer
    x = 1,049.71

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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.