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Finding the Fourth Proportional to 431,685.84, 595,785.06 and 247,996.20

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Solution

The fourth proportional to 431,685.84, 595,785.06 and 247,996.20 is: 342,268.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,685.84 : 595,785.06 = 247,996.20 : x
  2. Step 2: Convert to fraction form
    431,685.84/595,785.06 = 247,996.20/x
  3. Step 3: Cross multiply
    431,685.84x = 595,785.06 × 247,996.20
  4. Step 4: Simplify right side
    431,685.84x = 147,752,430,896.77
  5. Step 5: Solve for x
    x = 147,752,430,896.77/431,685.84
  6. Step 6: Final answer
    x = 342,268.42

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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.