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Finding the Fourth Proportional to 453,371.20, 680,056.80 and 403,604.80

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Solution

The fourth proportional to 453,371.20, 680,056.80 and 403,604.80 is: 605,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,371.20 : 680,056.80 = 403,604.80 : x
  2. Step 2: Convert to fraction form
    453,371.20/680,056.80 = 403,604.80/x
  3. Step 3: Cross multiply
    453,371.20x = 680,056.80 × 403,604.80
  4. Step 4: Simplify right side
    453,371.20x = 274,474,188,752.64
  5. Step 5: Solve for x
    x = 274,474,188,752.64/453,371.20
  6. Step 6: Final answer
    x = 605,407.20

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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.