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Finding the Fourth Proportional to 453,408.96, 680,016.24 and 187,100.40

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Solution

The fourth proportional to 453,408.96, 680,016.24 and 187,100.40 is: 280,610.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,408.96 : 680,016.24 = 187,100.40 : x
  2. Step 2: Convert to fraction form
    453,408.96/680,016.24 = 187,100.40/x
  3. Step 3: Cross multiply
    453,408.96x = 680,016.24 × 187,100.40
  4. Step 4: Simplify right side
    453,408.96x = 127,231,310,510.50
  5. Step 5: Solve for x
    x = 127,231,310,510.50/453,408.96
  6. Step 6: Final answer
    x = 280,610.49

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1.5x scale

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.