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Finding the Fourth Proportional to 576,977.70, 865,560.60 and 177,618.54

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Solution

The fourth proportional to 576,977.70, 865,560.60 and 177,618.54 is: 266,456.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,977.70 : 865,560.60 = 177,618.54 : x
  2. Step 2: Convert to fraction form
    576,977.70/865,560.60 = 177,618.54/x
  3. Step 3: Cross multiply
    576,977.70x = 865,560.60 × 177,618.54
  4. Step 4: Simplify right side
    576,977.70x = 153,739,610,053.52
  5. Step 5: Solve for x
    x = 153,739,610,053.52/576,977.70
  6. Step 6: Final answer
    x = 266,456.76

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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.