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Finding the Fourth Proportional to 1,044.48, 1,566.57 and 395.13

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Solution

The fourth proportional to 1,044.48, 1,566.57 and 395.13 is: 592.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.48 : 1,566.57 = 395.13 : x
  2. Step 2: Convert to fraction form
    1,044.48/1,566.57 = 395.13/x
  3. Step 3: Cross multiply
    1,044.48x = 1,566.57 × 395.13
  4. Step 4: Simplify right side
    1,044.48x = 618,998.80
  5. Step 5: Solve for x
    x = 618,998.80/1,044.48
  6. Step 6: Final answer
    x = 592.64

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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.