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Finding the Fourth Proportional to 1,011.83, 1,396.36 and 592.22

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Solution

The fourth proportional to 1,011.83, 1,396.36 and 592.22 is: 817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011.83 : 1,396.36 = 592.22 : x
  2. Step 2: Convert to fraction form
    1,011.83/1,396.36 = 592.22/x
  3. Step 3: Cross multiply
    1,011.83x = 1,396.36 × 592.22
  4. Step 4: Simplify right side
    1,011.83x = 826,951.61
  5. Step 5: Solve for x
    x = 826,951.61/1,011.83
  6. Step 6: Final answer
    x = 817.28

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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.