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Finding the Fourth Proportional to 1,151.25, 1,726.12 and 565.77

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Solution

The fourth proportional to 1,151.25, 1,726.12 and 565.77 is: 848.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.25 : 1,726.12 = 565.77 : x
  2. Step 2: Convert to fraction form
    1,151.25/1,726.12 = 565.77/x
  3. Step 3: Cross multiply
    1,151.25x = 1,726.12 × 565.77
  4. Step 4: Simplify right side
    1,151.25x = 976,586.91
  5. Step 5: Solve for x
    x = 976,586.91/1,151.25
  6. Step 6: Final answer
    x = 848.28

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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.