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Finding the Fourth Proportional to 1,053.86, 1,580.56 and 591.85

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Solution

The fourth proportional to 1,053.86, 1,580.56 and 591.85 is: 887.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.86 : 1,580.56 = 591.85 : x
  2. Step 2: Convert to fraction form
    1,053.86/1,580.56 = 591.85/x
  3. Step 3: Cross multiply
    1,053.86x = 1,580.56 × 591.85
  4. Step 4: Simplify right side
    1,053.86x = 935,449.00
  5. Step 5: Solve for x
    x = 935,449.00/1,053.86
  6. Step 6: Final answer
    x = 887.64

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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.