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Finding the Fourth Proportional to 1,025.64, 1,537.24 and 591.88

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Solution

The fourth proportional to 1,025.64, 1,537.24 and 591.88 is: 887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.64 : 1,537.24 = 591.88 : x
  2. Step 2: Convert to fraction form
    1,025.64/1,537.24 = 591.88/x
  3. Step 3: Cross multiply
    1,025.64x = 1,537.24 × 591.88
  4. Step 4: Simplify right side
    1,025.64x = 909,861.61
  5. Step 5: Solve for x
    x = 909,861.61/1,025.64
  6. Step 6: Final answer
    x = 887.12

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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.