Home / 451,916.40-677,173.78-261,905.49

Finding the Fourth Proportional to 451,916.40, 677,173.78 and 261,905.49

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Solution

The fourth proportional to 451,916.40, 677,173.78 and 261,905.49 is: 392,452.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,916.40 : 677,173.78 = 261,905.49 : x
  2. Step 2: Convert to fraction form
    451,916.40/677,173.78 = 261,905.49/x
  3. Step 3: Cross multiply
    451,916.40x = 677,173.78 × 261,905.49
  4. Step 4: Simplify right side
    451,916.40x = 177,355,527,471.89
  5. Step 5: Solve for x
    x = 177,355,527,471.89/451,916.40
  6. Step 6: Final answer
    x = 392,452.07

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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.