Home / 412,828.60-619,818.90-263,990.20

Finding the Fourth Proportional to 412,828.60, 619,818.90 and 263,990.20

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Solution

The fourth proportional to 412,828.60, 619,818.90 and 263,990.20 is: 396,353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,828.60 : 619,818.90 = 263,990.20 : x
  2. Step 2: Convert to fraction form
    412,828.60/619,818.90 = 263,990.20/x
  3. Step 3: Cross multiply
    412,828.60x = 619,818.90 × 263,990.20
  4. Step 4: Simplify right side
    412,828.60x = 163,626,115,374.78
  5. Step 5: Solve for x
    x = 163,626,115,374.78/412,828.60
  6. Step 6: Final answer
    x = 396,353.63

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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.