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Finding the Fourth Proportional to 934.67, 1,401.84 and 703.91

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Solution

The fourth proportional to 934.67, 1,401.84 and 703.91 is: 1,055.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.67 : 1,401.84 = 703.91 : x
  2. Step 2: Convert to fraction form
    934.67/1,401.84 = 703.91/x
  3. Step 3: Cross multiply
    934.67x = 1,401.84 × 703.91
  4. Step 4: Simplify right side
    934.67x = 986,772.70
  5. Step 5: Solve for x
    x = 986,772.70/934.67
  6. Step 6: Final answer
    x = 1,055.74

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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.