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Finding the Fourth Proportional to 538,725.57, 743,452.55 and 297,018.33

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Solution

The fourth proportional to 538,725.57, 743,452.55 and 297,018.33 is: 409,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,725.57 : 743,452.55 = 297,018.33 : x
  2. Step 2: Convert to fraction form
    538,725.57/743,452.55 = 297,018.33/x
  3. Step 3: Cross multiply
    538,725.57x = 743,452.55 × 297,018.33
  4. Step 4: Simplify right side
    538,725.57x = 220,819,033,350.15
  5. Step 5: Solve for x
    x = 220,819,033,350.15/538,725.57
  6. Step 6: Final answer
    x = 409,891.50

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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.