Home / 409,180.77-613,377.51-209,595.15

Finding the Fourth Proportional to 409,180.77, 613,377.51 and 209,595.15

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Solution

The fourth proportional to 409,180.77, 613,377.51 and 209,595.15 is: 314,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,180.77 : 613,377.51 = 209,595.15 : x
  2. Step 2: Convert to fraction form
    409,180.77/613,377.51 = 209,595.15/x
  3. Step 3: Cross multiply
    409,180.77x = 613,377.51 × 209,595.15
  4. Step 4: Simplify right side
    409,180.77x = 128,560,951,215.08
  5. Step 5: Solve for x
    x = 128,560,951,215.08/409,180.77
  6. Step 6: Final answer
    x = 314,191.09

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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.