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Finding the Fourth Proportional to 313,563.58, 432,725.80 and 170,331.82

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Solution

The fourth proportional to 313,563.58, 432,725.80 and 170,331.82 is: 235,062.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,563.58 : 432,725.80 = 170,331.82 : x
  2. Step 2: Convert to fraction form
    313,563.58/432,725.80 = 170,331.82/x
  3. Step 3: Cross multiply
    313,563.58x = 432,725.80 × 170,331.82
  4. Step 4: Simplify right side
    313,563.58x = 73,706,973,074.96
  5. Step 5: Solve for x
    x = 73,706,973,074.96/313,563.58
  6. Step 6: Final answer
    x = 235,062.29

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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.