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Finding the Fourth Proportional to 453,903.40, 680,855.10 and 187,575.40

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Solution

The fourth proportional to 453,903.40, 680,855.10 and 187,575.40 is: 281,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,903.40 : 680,855.10 = 187,575.40 : x
  2. Step 2: Convert to fraction form
    453,903.40/680,855.10 = 187,575.40/x
  3. Step 3: Cross multiply
    453,903.40x = 680,855.10 × 187,575.40
  4. Step 4: Simplify right side
    453,903.40x = 127,711,667,724.54
  5. Step 5: Solve for x
    x = 127,711,667,724.54/453,903.40
  6. Step 6: Final answer
    x = 281,363.10

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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.