Home / 638,184.30-880,694.34-351,704.38

Finding the Fourth Proportional to 638,184.30, 880,694.34 and 351,704.38

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Solution

The fourth proportional to 638,184.30, 880,694.34 and 351,704.38 is: 485,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,184.30 : 880,694.34 = 351,704.38 : x
  2. Step 2: Convert to fraction form
    638,184.30/880,694.34 = 351,704.38/x
  3. Step 3: Cross multiply
    638,184.30x = 880,694.34 × 351,704.38
  4. Step 4: Simplify right side
    638,184.30x = 309,744,056,819.21
  5. Step 5: Solve for x
    x = 309,744,056,819.21/638,184.30
  6. Step 6: Final answer
    x = 485,352.05

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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.