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Finding the Fourth Proportional to 937.06, 1,404.78 and 474.46

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Solution

The fourth proportional to 937.06, 1,404.78 and 474.46 is: 711.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.06 : 1,404.78 = 474.46 : x
  2. Step 2: Convert to fraction form
    937.06/1,404.78 = 474.46/x
  3. Step 3: Cross multiply
    937.06x = 1,404.78 × 474.46
  4. Step 4: Simplify right side
    937.06x = 666,511.92
  5. Step 5: Solve for x
    x = 666,511.92/937.06
  6. Step 6: Final answer
    x = 711.28

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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.