Home / 886,027.60-1,329,430.20-412,469.20

Finding the Fourth Proportional to 886,027.60, 1,329,430.20 and 412,469.20

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Solution

The fourth proportional to 886,027.60, 1,329,430.20 and 412,469.20 is: 618,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,027.60 : 1,329,430.20 = 412,469.20 : x
  2. Step 2: Convert to fraction form
    886,027.60/1,329,430.20 = 412,469.20/x
  3. Step 3: Cross multiply
    886,027.60x = 1,329,430.20 × 412,469.20
  4. Step 4: Simplify right side
    886,027.60x = 548,349,011,049.84
  5. Step 5: Solve for x
    x = 548,349,011,049.84/886,027.60
  6. Step 6: Final answer
    x = 618,884.80

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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.