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Finding the Fourth Proportional to 925.16, 1,276.58 and 575.88

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Solution

The fourth proportional to 925.16, 1,276.58 and 575.88 is: 794.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.16 : 1,276.58 = 575.88 : x
  2. Step 2: Convert to fraction form
    925.16/1,276.58 = 575.88/x
  3. Step 3: Cross multiply
    925.16x = 1,276.58 × 575.88
  4. Step 4: Simplify right side
    925.16x = 735,156.89
  5. Step 5: Solve for x
    x = 735,156.89/925.16
  6. Step 6: Final answer
    x = 794.63

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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.