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Finding the Fourth Proportional to 272,280.40, 407,837.40 and 225,624.40

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Solution

The fourth proportional to 272,280.40, 407,837.40 and 225,624.40 is: 337,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,280.40 : 407,837.40 = 225,624.40 : x
  2. Step 2: Convert to fraction form
    272,280.40/407,837.40 = 225,624.40/x
  3. Step 3: Cross multiply
    272,280.40x = 407,837.40 × 225,624.40
  4. Step 4: Simplify right side
    272,280.40x = 92,018,068,672.56
  5. Step 5: Solve for x
    x = 92,018,068,672.56/272,280.40
  6. Step 6: Final answer
    x = 337,953.33

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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.