Home / 2,188,276.80-3,280,082.40-839,918.40

Finding the Fourth Proportional to 2,188,276.80, 3,280,082.40 and 839,918.40

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Solution

The fourth proportional to 2,188,276.80, 3,280,082.40 and 839,918.40 is: 1,258,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,276.80 : 3,280,082.40 = 839,918.40 : x
  2. Step 2: Convert to fraction form
    2,188,276.80/3,280,082.40 = 839,918.40/x
  3. Step 3: Cross multiply
    2,188,276.80x = 3,280,082.40 × 839,918.40
  4. Step 4: Simplify right side
    2,188,276.80x = 2,755,001,561,276.16
  5. Step 5: Solve for x
    x = 2,755,001,561,276.16/2,188,276.80
  6. Step 6: Final answer
    x = 1,258,982.21

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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.