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Finding the Fourth Proportional to 1,046.70, 1,444.50 and 580.98

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Solution

The fourth proportional to 1,046.70, 1,444.50 and 580.98 is: 801.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.70 : 1,444.50 = 580.98 : x
  2. Step 2: Convert to fraction form
    1,046.70/1,444.50 = 580.98/x
  3. Step 3: Cross multiply
    1,046.70x = 1,444.50 × 580.98
  4. Step 4: Simplify right side
    1,046.70x = 839,225.61
  5. Step 5: Solve for x
    x = 839,225.61/1,046.70
  6. Step 6: Final answer
    x = 801.78

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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.