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Finding the Fourth Proportional to 937.44, 1,403.94 and 473.76

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Solution

The fourth proportional to 937.44, 1,403.94 and 473.76 is: 709.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.44 : 1,403.94 = 473.76 : x
  2. Step 2: Convert to fraction form
    937.44/1,403.94 = 473.76/x
  3. Step 3: Cross multiply
    937.44x = 1,403.94 × 473.76
  4. Step 4: Simplify right side
    937.44x = 665,130.61
  5. Step 5: Solve for x
    x = 665,130.61/937.44
  6. Step 6: Final answer
    x = 709.52

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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.