Home / 626,600.20-864,705.36-340,117.78

Finding the Fourth Proportional to 626,600.20, 864,705.36 and 340,117.78

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Solution

The fourth proportional to 626,600.20, 864,705.36 and 340,117.78 is: 469,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,600.20 : 864,705.36 = 340,117.78 : x
  2. Step 2: Convert to fraction form
    626,600.20/864,705.36 = 340,117.78/x
  3. Step 3: Cross multiply
    626,600.20x = 864,705.36 × 340,117.78
  4. Step 4: Simplify right side
    626,600.20x = 294,101,667,397.30
  5. Step 5: Solve for x
    x = 294,101,667,397.30/626,600.20
  6. Step 6: Final answer
    x = 469,360.95

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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.