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Finding the Fourth Proportional to 1,001.46, 1,501.02 and 671.70

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Solution

The fourth proportional to 1,001.46, 1,501.02 and 671.70 is: 1,006.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.46 : 1,501.02 = 671.70 : x
  2. Step 2: Convert to fraction form
    1,001.46/1,501.02 = 671.70/x
  3. Step 3: Cross multiply
    1,001.46x = 1,501.02 × 671.70
  4. Step 4: Simplify right side
    1,001.46x = 1,008,235.13
  5. Step 5: Solve for x
    x = 1,008,235.13/1,001.46
  6. Step 6: Final answer
    x = 1,006.77

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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.