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Finding the Fourth Proportional to 404,697.60, 607,046.40 and 218,073.60

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Solution

The fourth proportional to 404,697.60, 607,046.40 and 218,073.60 is: 327,110.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,697.60 : 607,046.40 = 218,073.60 : x
  2. Step 2: Convert to fraction form
    404,697.60/607,046.40 = 218,073.60/x
  3. Step 3: Cross multiply
    404,697.60x = 607,046.40 × 218,073.60
  4. Step 4: Simplify right side
    404,697.60x = 132,380,793,815.04
  5. Step 5: Solve for x
    x = 132,380,793,815.04/404,697.60
  6. Step 6: Final answer
    x = 327,110.40

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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.