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Finding the Fourth Proportional to 1,117.92, 1,677.06 and 337.83

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Solution

The fourth proportional to 1,117.92, 1,677.06 and 337.83 is: 506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.92 : 1,677.06 = 337.83 : x
  2. Step 2: Convert to fraction form
    1,117.92/1,677.06 = 337.83/x
  3. Step 3: Cross multiply
    1,117.92x = 1,677.06 × 337.83
  4. Step 4: Simplify right side
    1,117.92x = 566,561.18
  5. Step 5: Solve for x
    x = 566,561.18/1,117.92
  6. Step 6: Final answer
    x = 506.80

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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.