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Finding the Fourth Proportional to 313,801.10, 433,048.90 and 170,561.20

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Solution

The fourth proportional to 313,801.10, 433,048.90 and 170,561.20 is: 235,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,801.10 : 433,048.90 = 170,561.20 : x
  2. Step 2: Convert to fraction form
    313,801.10/433,048.90 = 170,561.20/x
  3. Step 3: Cross multiply
    313,801.10x = 433,048.90 × 170,561.20
  4. Step 4: Simplify right side
    313,801.10x = 73,861,340,042.68
  5. Step 5: Solve for x
    x = 73,861,340,042.68/313,801.10
  6. Step 6: Final answer
    x = 235,376.29

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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.