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Finding the Fourth Proportional to 934.70, 1,401.18 and 586.97

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Solution

The fourth proportional to 934.70, 1,401.18 and 586.97 is: 879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.70 : 1,401.18 = 586.97 : x
  2. Step 2: Convert to fraction form
    934.70/1,401.18 = 586.97/x
  3. Step 3: Cross multiply
    934.70x = 1,401.18 × 586.97
  4. Step 4: Simplify right side
    934.70x = 822,446.67
  5. Step 5: Solve for x
    x = 822,446.67/934.70
  6. Step 6: Final answer
    x = 879.91

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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.