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Finding the Fourth Proportional to 1,140.41, 1,711.07 and 562.88

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Solution

The fourth proportional to 1,140.41, 1,711.07 and 562.88 is: 844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.41 : 1,711.07 = 562.88 : x
  2. Step 2: Convert to fraction form
    1,140.41/1,711.07 = 562.88/x
  3. Step 3: Cross multiply
    1,140.41x = 1,711.07 × 562.88
  4. Step 4: Simplify right side
    1,140.41x = 963,115.71
  5. Step 5: Solve for x
    x = 963,115.71/1,140.41
  6. Step 6: Final answer
    x = 844.54

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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.