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Finding the Fourth Proportional to 1,043.46, 1,562.03 and 750.26

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Solution

The fourth proportional to 1,043.46, 1,562.03 and 750.26 is: 1,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.46 : 1,562.03 = 750.26 : x
  2. Step 2: Convert to fraction form
    1,043.46/1,562.03 = 750.26/x
  3. Step 3: Cross multiply
    1,043.46x = 1,562.03 × 750.26
  4. Step 4: Simplify right side
    1,043.46x = 1,171,935.82
  5. Step 5: Solve for x
    x = 1,171,935.82/1,043.46
  6. Step 6: Final answer
    x = 1,123.13

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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.