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Finding the Fourth Proportional to 1,192.59, 1,641.87 and 1,037.34

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Solution

The fourth proportional to 1,192.59, 1,641.87 and 1,037.34 is: 1,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.59 : 1,641.87 = 1,037.34 : x
  2. Step 2: Convert to fraction form
    1,192.59/1,641.87 = 1,037.34/x
  3. Step 3: Cross multiply
    1,192.59x = 1,641.87 × 1,037.34
  4. Step 4: Simplify right side
    1,192.59x = 1,703,177.43
  5. Step 5: Solve for x
    x = 1,703,177.43/1,192.59
  6. Step 6: Final answer
    x = 1,428.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.