Home / 457,225.20-685,837.80-124,801.20

Finding the Fourth Proportional to 457,225.20, 685,837.80 and 124,801.20

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Solution

The fourth proportional to 457,225.20, 685,837.80 and 124,801.20 is: 187,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,225.20 : 685,837.80 = 124,801.20 : x
  2. Step 2: Convert to fraction form
    457,225.20/685,837.80 = 124,801.20/x
  3. Step 3: Cross multiply
    457,225.20x = 685,837.80 × 124,801.20
  4. Step 4: Simplify right side
    457,225.20x = 85,593,380,445.36
  5. Step 5: Solve for x
    x = 85,593,380,445.36/457,225.20
  6. Step 6: Final answer
    x = 187,201.80

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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.