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Finding the Fourth Proportional to 313,290.19, 432,348.15 and 170,049.88

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Solution

The fourth proportional to 313,290.19, 432,348.15 and 170,049.88 is: 234,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,290.19 : 432,348.15 = 170,049.88 : x
  2. Step 2: Convert to fraction form
    313,290.19/432,348.15 = 170,049.88/x
  3. Step 3: Cross multiply
    313,290.19x = 432,348.15 × 170,049.88
  4. Step 4: Simplify right side
    313,290.19x = 73,520,751,025.72
  5. Step 5: Solve for x
    x = 73,520,751,025.72/313,290.19
  6. Step 6: Final answer
    x = 234,673.01

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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.