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Finding the Fourth Proportional to 1,037.88, 1,548.54 and 940.68

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Solution

The fourth proportional to 1,037.88, 1,548.54 and 940.68 is: 1,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.88 : 1,548.54 = 940.68 : x
  2. Step 2: Convert to fraction form
    1,037.88/1,548.54 = 940.68/x
  3. Step 3: Cross multiply
    1,037.88x = 1,548.54 × 940.68
  4. Step 4: Simplify right side
    1,037.88x = 1,456,680.61
  5. Step 5: Solve for x
    x = 1,456,680.61/1,037.88
  6. Step 6: Final answer
    x = 1,403.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.