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Finding the Fourth Proportional to 316,338.84, 436,533.66 and 193,793.76

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Solution

The fourth proportional to 316,338.84, 436,533.66 and 193,793.76 is: 267,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,338.84 : 436,533.66 = 193,793.76 : x
  2. Step 2: Convert to fraction form
    316,338.84/436,533.66 = 193,793.76/x
  3. Step 3: Cross multiply
    316,338.84x = 436,533.66 × 193,793.76
  4. Step 4: Simplify right side
    316,338.84x = 84,597,499,337.96
  5. Step 5: Solve for x
    x = 84,597,499,337.96/316,338.84
  6. Step 6: Final answer
    x = 267,426.85

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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.