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Finding the Fourth Proportional to 451,191.20, 622,534.21 and 249,987.20

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Solution

The fourth proportional to 451,191.20, 622,534.21 and 249,987.20 is: 344,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,191.20 : 622,534.21 = 249,987.20 : x
  2. Step 2: Convert to fraction form
    451,191.20/622,534.21 = 249,987.20/x
  3. Step 3: Cross multiply
    451,191.20x = 622,534.21 × 249,987.20
  4. Step 4: Simplify right side
    451,191.20x = 155,625,580,324.47
  5. Step 5: Solve for x
    x = 155,625,580,324.47/451,191.20
  6. Step 6: Final answer
    x = 344,921.58

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1.5x scale

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.