Home / 613,860.20-847,257.78-412,539.56

Finding the Fourth Proportional to 613,860.20, 847,257.78 and 412,539.56

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Solution

The fourth proportional to 613,860.20, 847,257.78 and 412,539.56 is: 569,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,860.20 : 847,257.78 = 412,539.56 : x
  2. Step 2: Convert to fraction form
    613,860.20/847,257.78 = 412,539.56/x
  3. Step 3: Cross multiply
    613,860.20x = 847,257.78 × 412,539.56
  4. Step 4: Simplify right side
    613,860.20x = 349,527,351,767.78
  5. Step 5: Solve for x
    x = 349,527,351,767.78/613,860.20
  6. Step 6: Final answer
    x = 569,392.43

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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.