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Finding the Fourth Proportional to 438,891.73, 605,503.67 and 324,445.16

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Solution

The fourth proportional to 438,891.73, 605,503.67 and 324,445.16 is: 447,610.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,891.73 : 605,503.67 = 324,445.16 : x
  2. Step 2: Convert to fraction form
    438,891.73/605,503.67 = 324,445.16/x
  3. Step 3: Cross multiply
    438,891.73x = 605,503.67 × 324,445.16
  4. Step 4: Simplify right side
    438,891.73x = 196,452,733,471.51
  5. Step 5: Solve for x
    x = 196,452,733,471.51/438,891.73
  6. Step 6: Final answer
    x = 447,610.93

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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.