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Finding the Fourth Proportional to 925.63, 1,277.59 and 610.95

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Solution

The fourth proportional to 925.63, 1,277.59 and 610.95 is: 843.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.63 : 1,277.59 = 610.95 : x
  2. Step 2: Convert to fraction form
    925.63/1,277.59 = 610.95/x
  3. Step 3: Cross multiply
    925.63x = 1,277.59 × 610.95
  4. Step 4: Simplify right side
    925.63x = 780,543.61
  5. Step 5: Solve for x
    x = 780,543.61/925.63
  6. Step 6: Final answer
    x = 843.26

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1.5x scale

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.