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Finding the Fourth Proportional to 313,261.97, 432,301.86 and 170,022.11

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Solution

The fourth proportional to 313,261.97, 432,301.86 and 170,022.11 is: 234,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,261.97 : 432,301.86 = 170,022.11 : x
  2. Step 2: Convert to fraction form
    313,261.97/432,301.86 = 170,022.11/x
  3. Step 3: Cross multiply
    313,261.97x = 432,301.86 × 170,022.11
  4. Step 4: Simplify right side
    313,261.97x = 73,500,872,232.62
  5. Step 5: Solve for x
    x = 73,500,872,232.62/313,261.97
  6. Step 6: Final answer
    x = 234,630.69

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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.