Home / 280,839.19-421,258.79-93,850.69

Finding the Fourth Proportional to 280,839.19, 421,258.79 and 93,850.69

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Solution

The fourth proportional to 280,839.19, 421,258.79 and 93,850.69 is: 140,776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,839.19 : 421,258.79 = 93,850.69 : x
  2. Step 2: Convert to fraction form
    280,839.19/421,258.79 = 93,850.69/x
  3. Step 3: Cross multiply
    280,839.19x = 421,258.79 × 93,850.69
  4. Step 4: Simplify right side
    280,839.19x = 39,535,427,640.81
  5. Step 5: Solve for x
    x = 39,535,427,640.81/280,839.19
  6. Step 6: Final answer
    x = 140,776.04

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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.