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Finding the Fourth Proportional to 617,906.04, 852,686.72 and 345,948.50

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Solution

The fourth proportional to 617,906.04, 852,686.72 and 345,948.50 is: 477,395.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,906.04 : 852,686.72 = 345,948.50 : x
  2. Step 2: Convert to fraction form
    617,906.04/852,686.72 = 345,948.50/x
  3. Step 3: Cross multiply
    617,906.04x = 852,686.72 × 345,948.50
  4. Step 4: Simplify right side
    617,906.04x = 294,985,691,753.92
  5. Step 5: Solve for x
    x = 294,985,691,753.92/617,906.04
  6. Step 6: Final answer
    x = 477,395.71

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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.