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Finding the Fourth Proportional to 1,043.89, 1,562.62 and 896.28

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Solution

The fourth proportional to 1,043.89, 1,562.62 and 896.28 is: 1,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.89 : 1,562.62 = 896.28 : x
  2. Step 2: Convert to fraction form
    1,043.89/1,562.62 = 896.28/x
  3. Step 3: Cross multiply
    1,043.89x = 1,562.62 × 896.28
  4. Step 4: Simplify right side
    1,043.89x = 1,400,545.05
  5. Step 5: Solve for x
    x = 1,400,545.05/1,043.89
  6. Step 6: Final answer
    x = 1,341.66

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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.