Home / 698,680.94-964,037.17-408,236.35

Finding the Fourth Proportional to 698,680.94, 964,037.17 and 408,236.35

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Solution

The fourth proportional to 698,680.94, 964,037.17 and 408,236.35 is: 563,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,680.94 : 964,037.17 = 408,236.35 : x
  2. Step 2: Convert to fraction form
    698,680.94/964,037.17 = 408,236.35/x
  3. Step 3: Cross multiply
    698,680.94x = 964,037.17 × 408,236.35
  4. Step 4: Simplify right side
    698,680.94x = 393,555,015,452.90
  5. Step 5: Solve for x
    x = 393,555,015,452.90/698,680.94
  6. Step 6: Final answer
    x = 563,282.88

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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.