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Finding the Fourth Proportional to 2,343.64, 3,512.76 and 1,044.40

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Solution

The fourth proportional to 2,343.64, 3,512.76 and 1,044.40 is: 1,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.64 : 3,512.76 = 1,044.40 : x
  2. Step 2: Convert to fraction form
    2,343.64/3,512.76 = 1,044.40/x
  3. Step 3: Cross multiply
    2,343.64x = 3,512.76 × 1,044.40
  4. Step 4: Simplify right side
    2,343.64x = 3,668,726.54
  5. Step 5: Solve for x
    x = 3,668,726.54/2,343.64
  6. Step 6: Final answer
    x = 1,565.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.