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Finding the Fourth Proportional to 1,079.30, 1,617.86 and 592.22

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Solution

The fourth proportional to 1,079.30, 1,617.86 and 592.22 is: 887.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.30 : 1,617.86 = 592.22 : x
  2. Step 2: Convert to fraction form
    1,079.30/1,617.86 = 592.22/x
  3. Step 3: Cross multiply
    1,079.30x = 1,617.86 × 592.22
  4. Step 4: Simplify right side
    1,079.30x = 958,129.05
  5. Step 5: Solve for x
    x = 958,129.05/1,079.30
  6. Step 6: Final answer
    x = 887.73

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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.