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Finding the Fourth Proportional to 937.26, 1,405.08 and 572.04

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Solution

The fourth proportional to 937.26, 1,405.08 and 572.04 is: 857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.26 : 1,405.08 = 572.04 : x
  2. Step 2: Convert to fraction form
    937.26/1,405.08 = 572.04/x
  3. Step 3: Cross multiply
    937.26x = 1,405.08 × 572.04
  4. Step 4: Simplify right side
    937.26x = 803,761.96
  5. Step 5: Solve for x
    x = 803,761.96/937.26
  6. Step 6: Final answer
    x = 857.57

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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.