Home / 878,209.85-1,211,260.90-755,910.38

Finding the Fourth Proportional to 878,209.85, 1,211,260.90 and 755,910.38

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Solution

The fourth proportional to 878,209.85, 1,211,260.90 and 755,910.38 is: 1,042,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,209.85 : 1,211,260.90 = 755,910.38 : x
  2. Step 2: Convert to fraction form
    878,209.85/1,211,260.90 = 755,910.38/x
  3. Step 3: Cross multiply
    878,209.85x = 1,211,260.90 × 755,910.38
  4. Step 4: Simplify right side
    878,209.85x = 915,604,687,198.14
  5. Step 5: Solve for x
    x = 915,604,687,198.14/878,209.85
  6. Step 6: Final answer
    x = 1,042,580.75

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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.