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Finding the Fourth Proportional to 612,178.56, 844,801.92 and 343,906.56

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Solution

The fourth proportional to 612,178.56, 844,801.92 and 343,906.56 is: 474,588.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,178.56 : 844,801.92 = 343,906.56 : x
  2. Step 2: Convert to fraction form
    612,178.56/844,801.92 = 343,906.56/x
  3. Step 3: Cross multiply
    612,178.56x = 844,801.92 × 343,906.56
  4. Step 4: Simplify right side
    612,178.56x = 290,532,922,188.60
  5. Step 5: Solve for x
    x = 290,532,922,188.60/612,178.56
  6. Step 6: Final answer
    x = 474,588.53

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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.