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Finding the Fourth Proportional to 937.01, 1,405.58 and 474.26

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Solution

The fourth proportional to 937.01, 1,405.58 and 474.26 is: 711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.01 : 1,405.58 = 474.26 : x
  2. Step 2: Convert to fraction form
    937.01/1,405.58 = 474.26/x
  3. Step 3: Cross multiply
    937.01x = 1,405.58 × 474.26
  4. Step 4: Simplify right side
    937.01x = 666,600.97
  5. Step 5: Solve for x
    x = 666,600.97/937.01
  6. Step 6: Final answer
    x = 711.41

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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.