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Finding the Fourth Proportional to 431,763.90, 595,821.06 and 240,809.64

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Solution

The fourth proportional to 431,763.90, 595,821.06 and 240,809.64 is: 332,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,763.90 : 595,821.06 = 240,809.64 : x
  2. Step 2: Convert to fraction form
    431,763.90/595,821.06 = 240,809.64/x
  3. Step 3: Cross multiply
    431,763.90x = 595,821.06 × 240,809.64
  4. Step 4: Simplify right side
    431,763.90x = 143,479,454,963.02
  5. Step 5: Solve for x
    x = 143,479,454,963.02/431,763.90
  6. Step 6: Final answer
    x = 332,309.98

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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.