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Finding the Fourth Proportional to 925.80, 1,278.02 and 594.68

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Solution

The fourth proportional to 925.80, 1,278.02 and 594.68 is: 820.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.80 : 1,278.02 = 594.68 : x
  2. Step 2: Convert to fraction form
    925.80/1,278.02 = 594.68/x
  3. Step 3: Cross multiply
    925.80x = 1,278.02 × 594.68
  4. Step 4: Simplify right side
    925.80x = 760,012.93
  5. Step 5: Solve for x
    x = 760,012.93/925.80
  6. Step 6: Final answer
    x = 820.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.