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Finding the Fourth Proportional to 516,956.22, 775,434.60 and 161,998.02

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Solution

The fourth proportional to 516,956.22, 775,434.60 and 161,998.02 is: 242,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,956.22 : 775,434.60 = 161,998.02 : x
  2. Step 2: Convert to fraction form
    516,956.22/775,434.60 = 161,998.02/x
  3. Step 3: Cross multiply
    516,956.22x = 775,434.60 × 161,998.02
  4. Step 4: Simplify right side
    516,956.22x = 125,618,869,839.49
  5. Step 5: Solve for x
    x = 125,618,869,839.49/516,956.22
  6. Step 6: Final answer
    x = 242,997.11

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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.