Home / 354,869.44-489,720.66-193,724.56

Finding the Fourth Proportional to 354,869.44, 489,720.66 and 193,724.56

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Solution

The fourth proportional to 354,869.44, 489,720.66 and 193,724.56 is: 267,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,869.44 : 489,720.66 = 193,724.56 : x
  2. Step 2: Convert to fraction form
    354,869.44/489,720.66 = 193,724.56/x
  3. Step 3: Cross multiply
    354,869.44x = 489,720.66 × 193,724.56
  4. Step 4: Simplify right side
    354,869.44x = 94,870,919,381.41
  5. Step 5: Solve for x
    x = 94,870,919,381.41/354,869.44
  6. Step 6: Final answer
    x = 267,340.35

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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.