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Finding the Fourth Proportional to 1,016.40, 1,526.28 and 583.92

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Solution

The fourth proportional to 1,016.40, 1,526.28 and 583.92 is: 876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.40 : 1,526.28 = 583.92 : x
  2. Step 2: Convert to fraction form
    1,016.40/1,526.28 = 583.92/x
  3. Step 3: Cross multiply
    1,016.40x = 1,526.28 × 583.92
  4. Step 4: Simplify right side
    1,016.40x = 891,225.42
  5. Step 5: Solve for x
    x = 891,225.42/1,016.40
  6. Step 6: Final answer
    x = 876.85

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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.