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Finding the Fourth Proportional to 577,498.40, 866,231.40 and 261,954.80

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Solution

The fourth proportional to 577,498.40, 866,231.40 and 261,954.80 is: 392,924.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,498.40 : 866,231.40 = 261,954.80 : x
  2. Step 2: Convert to fraction form
    577,498.40/866,231.40 = 261,954.80/x
  3. Step 3: Cross multiply
    577,498.40x = 866,231.40 × 261,954.80
  4. Step 4: Simplify right side
    577,498.40x = 226,913,473,140.72
  5. Step 5: Solve for x
    x = 226,913,473,140.72/577,498.40
  6. Step 6: Final answer
    x = 392,924.85

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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.