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Finding the Fourth Proportional to 698,766.72, 964,293.24 and 396,960.72

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Solution

The fourth proportional to 698,766.72, 964,293.24 and 396,960.72 is: 547,803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,766.72 : 964,293.24 = 396,960.72 : x
  2. Step 2: Convert to fraction form
    698,766.72/964,293.24 = 396,960.72/x
  3. Step 3: Cross multiply
    698,766.72x = 964,293.24 × 396,960.72
  4. Step 4: Simplify right side
    698,766.72x = 382,786,538,841.53
  5. Step 5: Solve for x
    x = 382,786,538,841.53/698,766.72
  6. Step 6: Final answer
    x = 547,803.05

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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.