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Finding the Fourth Proportional to 937.35, 1,406.43 and 741.06

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Solution

The fourth proportional to 937.35, 1,406.43 and 741.06 is: 1,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.35 : 1,406.43 = 741.06 : x
  2. Step 2: Convert to fraction form
    937.35/1,406.43 = 741.06/x
  3. Step 3: Cross multiply
    937.35x = 1,406.43 × 741.06
  4. Step 4: Simplify right side
    937.35x = 1,042,249.02
  5. Step 5: Solve for x
    x = 1,042,249.02/937.35
  6. Step 6: Final answer
    x = 1,111.91

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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.