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Finding the Fourth Proportional to 479,763.10, 662,076.28 and 261,973.28

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Solution

The fourth proportional to 479,763.10, 662,076.28 and 261,973.28 is: 361,524.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,763.10 : 662,076.28 = 261,973.28 : x
  2. Step 2: Convert to fraction form
    479,763.10/662,076.28 = 261,973.28/x
  3. Step 3: Cross multiply
    479,763.10x = 662,076.28 × 261,973.28
  4. Step 4: Simplify right side
    479,763.10x = 173,446,294,681.80
  5. Step 5: Solve for x
    x = 173,446,294,681.80/479,763.10
  6. Step 6: Final answer
    x = 361,524.87

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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.