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Finding the Fourth Proportional to 1,046.05, 1,443.55 and 580.30

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Solution

The fourth proportional to 1,046.05, 1,443.55 and 580.30 is: 800.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.05 : 1,443.55 = 580.30 : x
  2. Step 2: Convert to fraction form
    1,046.05/1,443.55 = 580.30/x
  3. Step 3: Cross multiply
    1,046.05x = 1,443.55 × 580.30
  4. Step 4: Simplify right side
    1,046.05x = 837,686.28
  5. Step 5: Solve for x
    x = 837,686.28/1,046.05
  6. Step 6: Final answer
    x = 800.81

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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.