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Finding the Fourth Proportional to 937.59, 1,405.98 and 352.58

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Solution

The fourth proportional to 937.59, 1,405.98 and 352.58 is: 528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.59 : 1,405.98 = 352.58 : x
  2. Step 2: Convert to fraction form
    937.59/1,405.98 = 352.58/x
  3. Step 3: Cross multiply
    937.59x = 1,405.98 × 352.58
  4. Step 4: Simplify right side
    937.59x = 495,713.40
  5. Step 5: Solve for x
    x = 495,713.40/937.59
  6. Step 6: Final answer
    x = 528.71

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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.