Home / 326,569.41-489,728.16-126,863.55

Finding the Fourth Proportional to 326,569.41, 489,728.16 and 126,863.55

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Solution

The fourth proportional to 326,569.41, 489,728.16 and 126,863.55 is: 190,246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,569.41 : 489,728.16 = 126,863.55 : x
  2. Step 2: Convert to fraction form
    326,569.41/489,728.16 = 126,863.55/x
  3. Step 3: Cross multiply
    326,569.41x = 489,728.16 × 126,863.55
  4. Step 4: Simplify right side
    326,569.41x = 62,128,652,912.57
  5. Step 5: Solve for x
    x = 62,128,652,912.57/326,569.41
  6. Step 6: Final answer
    x = 190,246.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.