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Finding the Fourth Proportional to 297,048.20, 445,572.30 and 157,080.20

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Solution

The fourth proportional to 297,048.20, 445,572.30 and 157,080.20 is: 235,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,048.20 : 445,572.30 = 157,080.20 : x
  2. Step 2: Convert to fraction form
    297,048.20/445,572.30 = 157,080.20/x
  3. Step 3: Cross multiply
    297,048.20x = 445,572.30 × 157,080.20
  4. Step 4: Simplify right side
    297,048.20x = 69,990,585,998.46
  5. Step 5: Solve for x
    x = 69,990,585,998.46/297,048.20
  6. Step 6: Final answer
    x = 235,620.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.