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Finding the Fourth Proportional to 576,859.40, 865,371.90 and 177,533.96

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Solution

The fourth proportional to 576,859.40, 865,371.90 and 177,533.96 is: 266,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,859.40 : 865,371.90 = 177,533.96 : x
  2. Step 2: Convert to fraction form
    576,859.40/865,371.90 = 177,533.96/x
  3. Step 3: Cross multiply
    576,859.40x = 865,371.90 × 177,533.96
  4. Step 4: Simplify right side
    576,859.40x = 153,632,900,279.72
  5. Step 5: Solve for x
    x = 153,632,900,279.72/576,859.40
  6. Step 6: Final answer
    x = 266,326.42

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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.