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Finding the Fourth Proportional to 1,426.95, 2,140.92 and 594.46

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Solution

The fourth proportional to 1,426.95, 2,140.92 and 594.46 is: 891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.95 : 2,140.92 = 594.46 : x
  2. Step 2: Convert to fraction form
    1,426.95/2,140.92 = 594.46/x
  3. Step 3: Cross multiply
    1,426.95x = 2,140.92 × 594.46
  4. Step 4: Simplify right side
    1,426.95x = 1,272,691.30
  5. Step 5: Solve for x
    x = 1,272,691.30/1,426.95
  6. Step 6: Final answer
    x = 891.90

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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.