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Finding the Fourth Proportional to 404,734.20, 607,101.30 and 205,668.60

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Solution

The fourth proportional to 404,734.20, 607,101.30 and 205,668.60 is: 308,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,734.20 : 607,101.30 = 205,668.60 : x
  2. Step 2: Convert to fraction form
    404,734.20/607,101.30 = 205,668.60/x
  3. Step 3: Cross multiply
    404,734.20x = 607,101.30 × 205,668.60
  4. Step 4: Simplify right side
    404,734.20x = 124,861,674,429.18
  5. Step 5: Solve for x
    x = 124,861,674,429.18/404,734.20
  6. Step 6: Final answer
    x = 308,502.90

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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.