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Finding the Fourth Proportional to 431,290.56, 595,233.60 and 261,524.16

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Solution

The fourth proportional to 431,290.56, 595,233.60 and 261,524.16 is: 360,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,290.56 : 595,233.60 = 261,524.16 : x
  2. Step 2: Convert to fraction form
    431,290.56/595,233.60 = 261,524.16/x
  3. Step 3: Cross multiply
    431,290.56x = 595,233.60 × 261,524.16
  4. Step 4: Simplify right side
    431,290.56x = 155,667,967,243.78
  5. Step 5: Solve for x
    x = 155,667,967,243.78/431,290.56
  6. Step 6: Final answer
    x = 360,935.25

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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.