Home / 679,557.20-1,019,991.90-413,836.70

Finding the Fourth Proportional to 679,557.20, 1,019,991.90 and 413,836.70

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Solution

The fourth proportional to 679,557.20, 1,019,991.90 and 413,836.70 is: 621,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,557.20 : 1,019,991.90 = 413,836.70 : x
  2. Step 2: Convert to fraction form
    679,557.20/1,019,991.90 = 413,836.70/x
  3. Step 3: Cross multiply
    679,557.20x = 1,019,991.90 × 413,836.70
  4. Step 4: Simplify right side
    679,557.20x = 422,110,081,922.73
  5. Step 5: Solve for x
    x = 422,110,081,922.73/679,557.20
  6. Step 6: Final answer
    x = 621,154.60

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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.