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Finding the Fourth Proportional to 431,395.20, 595,369.90 and 259,369.44

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Solution

The fourth proportional to 431,395.20, 595,369.90 and 259,369.44 is: 357,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,395.20 : 595,369.90 = 259,369.44 : x
  2. Step 2: Convert to fraction form
    431,395.20/595,369.90 = 259,369.44/x
  3. Step 3: Cross multiply
    431,395.20x = 595,369.90 × 259,369.44
  4. Step 4: Simplify right side
    431,395.20x = 154,420,757,555.86
  5. Step 5: Solve for x
    x = 154,420,757,555.86/431,395.20
  6. Step 6: Final answer
    x = 357,956.60

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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.