Home / 438,540.20-657,810.30-383,244.20

Finding the Fourth Proportional to 438,540.20, 657,810.30 and 383,244.20

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Solution

The fourth proportional to 438,540.20, 657,810.30 and 383,244.20 is: 574,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,540.20 : 657,810.30 = 383,244.20 : x
  2. Step 2: Convert to fraction form
    438,540.20/657,810.30 = 383,244.20/x
  3. Step 3: Cross multiply
    438,540.20x = 657,810.30 × 383,244.20
  4. Step 4: Simplify right side
    438,540.20x = 252,101,982,175.26
  5. Step 5: Solve for x
    x = 252,101,982,175.26/438,540.20
  6. Step 6: Final answer
    x = 574,866.30

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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.