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Finding the Fourth Proportional to 519,810.62, 717,344.64 and 304,954.34

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Solution

The fourth proportional to 519,810.62, 717,344.64 and 304,954.34 is: 420,840.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,810.62 : 717,344.64 = 304,954.34 : x
  2. Step 2: Convert to fraction form
    519,810.62/717,344.64 = 304,954.34/x
  3. Step 3: Cross multiply
    519,810.62x = 717,344.64 × 304,954.34
  4. Step 4: Simplify right side
    519,810.62x = 218,757,361,243.74
  5. Step 5: Solve for x
    x = 218,757,361,243.74/519,810.62
  6. Step 6: Final answer
    x = 420,840.50

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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.