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Finding the Fourth Proportional to 438,552.48, 605,197.68 and 257,229.60

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Solution

The fourth proportional to 438,552.48, 605,197.68 and 257,229.60 is: 354,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,552.48 : 605,197.68 = 257,229.60 : x
  2. Step 2: Convert to fraction form
    438,552.48/605,197.68 = 257,229.60/x
  3. Step 3: Cross multiply
    438,552.48x = 605,197.68 × 257,229.60
  4. Step 4: Simplify right side
    438,552.48x = 155,674,757,147.33
  5. Step 5: Solve for x
    x = 155,674,757,147.33/438,552.48
  6. Step 6: Final answer
    x = 354,974.07

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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.