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Finding the Fourth Proportional to 626,540.99, 864,627.41 and 340,061.11

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Solution

The fourth proportional to 626,540.99, 864,627.41 and 340,061.11 is: 469,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,540.99 : 864,627.41 = 340,061.11 : x
  2. Step 2: Convert to fraction form
    626,540.99/864,627.41 = 340,061.11/x
  3. Step 3: Cross multiply
    626,540.99x = 864,627.41 × 340,061.11
  4. Step 4: Simplify right side
    626,540.99x = 294,026,155,469.61
  5. Step 5: Solve for x
    x = 294,026,155,469.61/626,540.99
  6. Step 6: Final answer
    x = 469,284.79

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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.