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Finding the Fourth Proportional to 431,161.80, 602,839.20 and 431,161.80

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Solution

The fourth proportional to 431,161.80, 602,839.20 and 431,161.80 is: 602,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,161.80 : 602,839.20 = 431,161.80 : x
  2. Step 2: Convert to fraction form
    431,161.80/602,839.20 = 431,161.80/x
  3. Step 3: Cross multiply
    431,161.80x = 602,839.20 × 431,161.80
  4. Step 4: Simplify right side
    431,161.80x = 259,921,234,582.56
  5. Step 5: Solve for x
    x = 259,921,234,582.56/431,161.80
  6. Step 6: Final answer
    x = 602,839.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.