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Finding the Fourth Proportional to 1,059.67, 1,588.90 and 482.55

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Solution

The fourth proportional to 1,059.67, 1,588.90 and 482.55 is: 723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.67 : 1,588.90 = 482.55 : x
  2. Step 2: Convert to fraction form
    1,059.67/1,588.90 = 482.55/x
  3. Step 3: Cross multiply
    1,059.67x = 1,588.90 × 482.55
  4. Step 4: Simplify right side
    1,059.67x = 766,723.70
  5. Step 5: Solve for x
    x = 766,723.70/1,059.67
  6. Step 6: Final answer
    x = 723.55

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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.