Home / 457,531.20-686,388.33-158,022.63

Finding the Fourth Proportional to 457,531.20, 686,388.33 and 158,022.63

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Solution

The fourth proportional to 457,531.20, 686,388.33 and 158,022.63 is: 237,065.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,531.20 : 686,388.33 = 158,022.63 : x
  2. Step 2: Convert to fraction form
    457,531.20/686,388.33 = 158,022.63/x
  3. Step 3: Cross multiply
    457,531.20x = 686,388.33 × 158,022.63
  4. Step 4: Simplify right side
    457,531.20x = 108,464,889,107.91
  5. Step 5: Solve for x
    x = 108,464,889,107.91/457,531.20
  6. Step 6: Final answer
    x = 237,065.56

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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.