Home / 286,961.13-430,227.45-197,960.76

Finding the Fourth Proportional to 286,961.13, 430,227.45 and 197,960.76

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Solution

The fourth proportional to 286,961.13, 430,227.45 and 197,960.76 is: 296,793.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,961.13 : 430,227.45 = 197,960.76 : x
  2. Step 2: Convert to fraction form
    286,961.13/430,227.45 = 197,960.76/x
  3. Step 3: Cross multiply
    286,961.13x = 430,227.45 × 197,960.76
  4. Step 4: Simplify right side
    286,961.13x = 85,168,152,974.86
  5. Step 5: Solve for x
    x = 85,168,152,974.86/286,961.13
  6. Step 6: Final answer
    x = 296,793.34

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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.