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Finding the Fourth Proportional to 617,503.80, 925,771.86 and 243,806.52

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Solution

The fourth proportional to 617,503.80, 925,771.86 and 243,806.52 is: 365,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,503.80 : 925,771.86 = 243,806.52 : x
  2. Step 2: Convert to fraction form
    617,503.80/925,771.86 = 243,806.52/x
  3. Step 3: Cross multiply
    617,503.80x = 925,771.86 × 243,806.52
  4. Step 4: Simplify right side
    617,503.80x = 225,709,215,500.53
  5. Step 5: Solve for x
    x = 225,709,215,500.53/617,503.80
  6. Step 6: Final answer
    x = 365,518.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.