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Finding the Fourth Proportional to 335,909.84, 503,935.83 and 111,257.55

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Solution

The fourth proportional to 335,909.84, 503,935.83 and 111,257.55 is: 166,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,909.84 : 503,935.83 = 111,257.55 : x
  2. Step 2: Convert to fraction form
    335,909.84/503,935.83 = 111,257.55/x
  3. Step 3: Cross multiply
    335,909.84x = 503,935.83 × 111,257.55
  4. Step 4: Simplify right side
    335,909.84x = 56,066,665,803.02
  5. Step 5: Solve for x
    x = 56,066,665,803.02/335,909.84
  6. Step 6: Final answer
    x = 166,909.87

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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.