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Finding the Fourth Proportional to 1,046.46, 1,444.05 and 580.74

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Solution

The fourth proportional to 1,046.46, 1,444.05 and 580.74 is: 801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.46 : 1,444.05 = 580.74 : x
  2. Step 2: Convert to fraction form
    1,046.46/1,444.05 = 580.74/x
  3. Step 3: Cross multiply
    1,046.46x = 1,444.05 × 580.74
  4. Step 4: Simplify right side
    1,046.46x = 838,617.60
  5. Step 5: Solve for x
    x = 838,617.60/1,046.46
  6. Step 6: Final answer
    x = 801.39

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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.