Home / 912,285.78-1,258,857.92-504,321.85

Finding the Fourth Proportional to 912,285.78, 1,258,857.92 and 504,321.85

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Solution

The fourth proportional to 912,285.78, 1,258,857.92 and 504,321.85 is: 695,910.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,285.78 : 1,258,857.92 = 504,321.85 : x
  2. Step 2: Convert to fraction form
    912,285.78/1,258,857.92 = 504,321.85/x
  3. Step 3: Cross multiply
    912,285.78x = 1,258,857.92 × 504,321.85
  4. Step 4: Simplify right side
    912,285.78x = 634,869,555,101.55
  5. Step 5: Solve for x
    x = 634,869,555,101.55/912,285.78
  6. Step 6: Final answer
    x = 695,910.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.