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Finding the Fourth Proportional to 288,081.30, 431,603.55 and 246,609.30

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Solution

The fourth proportional to 288,081.30, 431,603.55 and 246,609.30 is: 369,470.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,081.30 : 431,603.55 = 246,609.30 : x
  2. Step 2: Convert to fraction form
    288,081.30/431,603.55 = 246,609.30/x
  3. Step 3: Cross multiply
    288,081.30x = 431,603.55 × 246,609.30
  4. Step 4: Simplify right side
    288,081.30x = 106,437,449,343.02
  5. Step 5: Solve for x
    x = 106,437,449,343.02/288,081.30
  6. Step 6: Final answer
    x = 369,470.18

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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.