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Finding the Fourth Proportional to 354,895.92, 489,763.78 and 193,757.76

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Solution

The fourth proportional to 354,895.92, 489,763.78 and 193,757.76 is: 267,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,895.92 : 489,763.78 = 193,757.76 : x
  2. Step 2: Convert to fraction form
    354,895.92/489,763.78 = 193,757.76/x
  3. Step 3: Cross multiply
    354,895.92x = 489,763.78 × 193,757.76
  4. Step 4: Simplify right side
    354,895.92x = 94,895,532,457.54
  5. Step 5: Solve for x
    x = 94,895,532,457.54/354,895.92
  6. Step 6: Final answer
    x = 267,389.75

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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.