Home / 698,067.20-963,423.60-426,078.56

Finding the Fourth Proportional to 698,067.20, 963,423.60 and 426,078.56

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Solution

The fourth proportional to 698,067.20, 963,423.60 and 426,078.56 is: 588,043.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,067.20 : 963,423.60 = 426,078.56 : x
  2. Step 2: Convert to fraction form
    698,067.20/963,423.60 = 426,078.56/x
  3. Step 3: Cross multiply
    698,067.20x = 963,423.60 × 426,078.56
  4. Step 4: Simplify right side
    698,067.20x = 410,494,140,158.02
  5. Step 5: Solve for x
    x = 410,494,140,158.02/698,067.20
  6. Step 6: Final answer
    x = 588,043.87

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Double scale
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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.