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Finding the Fourth Proportional to 577,362.20, 866,063.10 and 177,999.80

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Solution

The fourth proportional to 577,362.20, 866,063.10 and 177,999.80 is: 267,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,362.20 : 866,063.10 = 177,999.80 : x
  2. Step 2: Convert to fraction form
    577,362.20/866,063.10 = 177,999.80/x
  3. Step 3: Cross multiply
    577,362.20x = 866,063.10 × 177,999.80
  4. Step 4: Simplify right side
    577,362.20x = 154,159,058,587.38
  5. Step 5: Solve for x
    x = 154,159,058,587.38/577,362.20
  6. Step 6: Final answer
    x = 267,005.80

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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.