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Finding the Fourth Proportional to 469,237.20, 647,548.20 and 254,376.60

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Solution

The fourth proportional to 469,237.20, 647,548.20 and 254,376.60 is: 351,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,237.20 : 647,548.20 = 254,376.60 : x
  2. Step 2: Convert to fraction form
    469,237.20/647,548.20 = 254,376.60/x
  3. Step 3: Cross multiply
    469,237.20x = 647,548.20 × 254,376.60
  4. Step 4: Simplify right side
    469,237.20x = 164,721,109,452.12
  5. Step 5: Solve for x
    x = 164,721,109,452.12/469,237.20
  6. Step 6: Final answer
    x = 351,040.18

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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.