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Finding the Fourth Proportional to 1,532.68, 2,299.29 and 752.58

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Solution

The fourth proportional to 1,532.68, 2,299.29 and 752.58 is: 1,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.68 : 2,299.29 = 752.58 : x
  2. Step 2: Convert to fraction form
    1,532.68/2,299.29 = 752.58/x
  3. Step 3: Cross multiply
    1,532.68x = 2,299.29 × 752.58
  4. Step 4: Simplify right side
    1,532.68x = 1,730,399.67
  5. Step 5: Solve for x
    x = 1,730,399.67/1,532.68
  6. Step 6: Final answer
    x = 1,129.00

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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.