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Finding the Fourth Proportional to 907.11, 1,251.72 and 592.38

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Solution

The fourth proportional to 907.11, 1,251.72 and 592.38 is: 817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.11 : 1,251.72 = 592.38 : x
  2. Step 2: Convert to fraction form
    907.11/1,251.72 = 592.38/x
  3. Step 3: Cross multiply
    907.11x = 1,251.72 × 592.38
  4. Step 4: Simplify right side
    907.11x = 741,493.89
  5. Step 5: Solve for x
    x = 741,493.89/907.11
  6. Step 6: Final answer
    x = 817.42

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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.