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Finding the Fourth Proportional to 1,294.13, 1,941.18 and 472.46

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Solution

The fourth proportional to 1,294.13, 1,941.18 and 472.46 is: 708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.13 : 1,941.18 = 472.46 : x
  2. Step 2: Convert to fraction form
    1,294.13/1,941.18 = 472.46/x
  3. Step 3: Cross multiply
    1,294.13x = 1,941.18 × 472.46
  4. Step 4: Simplify right side
    1,294.13x = 917,120.20
  5. Step 5: Solve for x
    x = 917,120.20/1,294.13
  6. Step 6: Final answer
    x = 708.68

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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.