Home / 1,211,793.30-1,817,689.95-412,809.30

Finding the Fourth Proportional to 1,211,793.30, 1,817,689.95 and 412,809.30

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Solution

The fourth proportional to 1,211,793.30, 1,817,689.95 and 412,809.30 is: 619,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,793.30 : 1,817,689.95 = 412,809.30 : x
  2. Step 2: Convert to fraction form
    1,211,793.30/1,817,689.95 = 412,809.30/x
  3. Step 3: Cross multiply
    1,211,793.30x = 1,817,689.95 × 412,809.30
  4. Step 4: Simplify right side
    1,211,793.30x = 750,359,315,876.54
  5. Step 5: Solve for x
    x = 750,359,315,876.54/1,211,793.30
  6. Step 6: Final answer
    x = 619,213.95

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Double scale
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Similar ratio
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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.