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Finding the Fourth Proportional to 294,343.20, 441,514.80 and 154,144.80

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Solution

The fourth proportional to 294,343.20, 441,514.80 and 154,144.80 is: 231,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,343.20 : 441,514.80 = 154,144.80 : x
  2. Step 2: Convert to fraction form
    294,343.20/441,514.80 = 154,144.80/x
  3. Step 3: Cross multiply
    294,343.20x = 441,514.80 × 154,144.80
  4. Step 4: Simplify right side
    294,343.20x = 68,057,210,543.04
  5. Step 5: Solve for x
    x = 68,057,210,543.04/294,343.20
  6. Step 6: Final answer
    x = 231,217.20

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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.