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Finding the Fourth Proportional to 453,958.40, 680,937.60 and 404,969.60

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Solution

The fourth proportional to 453,958.40, 680,937.60 and 404,969.60 is: 607,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,958.40 : 680,937.60 = 404,969.60 : x
  2. Step 2: Convert to fraction form
    453,958.40/680,937.60 = 404,969.60/x
  3. Step 3: Cross multiply
    453,958.40x = 680,937.60 × 404,969.60
  4. Step 4: Simplify right side
    453,958.40x = 275,759,027,496.96
  5. Step 5: Solve for x
    x = 275,759,027,496.96/453,958.40
  6. Step 6: Final answer
    x = 607,454.40

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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.