Home / 558,966.80-838,450.20-543,414.80

Finding the Fourth Proportional to 558,966.80, 838,450.20 and 543,414.80

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Solution

The fourth proportional to 558,966.80, 838,450.20 and 543,414.80 is: 815,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,966.80 : 838,450.20 = 543,414.80 : x
  2. Step 2: Convert to fraction form
    558,966.80/838,450.20 = 543,414.80/x
  3. Step 3: Cross multiply
    558,966.80x = 838,450.20 × 543,414.80
  4. Step 4: Simplify right side
    558,966.80x = 455,626,247,742.96
  5. Step 5: Solve for x
    x = 455,626,247,742.96/558,966.80
  6. Step 6: Final answer
    x = 815,122.20

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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.