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Finding the Fourth Proportional to 1,372.48, 2,057.00 and 591.59

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Solution

The fourth proportional to 1,372.48, 2,057.00 and 591.59 is: 886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.48 : 2,057.00 = 591.59 : x
  2. Step 2: Convert to fraction form
    1,372.48/2,057.00 = 591.59/x
  3. Step 3: Cross multiply
    1,372.48x = 2,057.00 × 591.59
  4. Step 4: Simplify right side
    1,372.48x = 1,216,902.81
  5. Step 5: Solve for x
    x = 1,216,902.81/1,372.48
  6. Step 6: Final answer
    x = 886.65

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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.