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Finding the Fourth Proportional to 1,046.13, 1,443.66 and 580.47

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Solution

The fourth proportional to 1,046.13, 1,443.66 and 580.47 is: 801.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.13 : 1,443.66 = 580.47 : x
  2. Step 2: Convert to fraction form
    1,046.13/1,443.66 = 580.47/x
  3. Step 3: Cross multiply
    1,046.13x = 1,443.66 × 580.47
  4. Step 4: Simplify right side
    1,046.13x = 837,991.20
  5. Step 5: Solve for x
    x = 837,991.20/1,046.13
  6. Step 6: Final answer
    x = 801.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.