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Finding the Fourth Proportional to 474,580.80, 711,457.92 and 193,919.04

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Solution

The fourth proportional to 474,580.80, 711,457.92 and 193,919.04 is: 290,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,580.80 : 711,457.92 = 193,919.04 : x
  2. Step 2: Convert to fraction form
    474,580.80/711,457.92 = 193,919.04/x
  3. Step 3: Cross multiply
    474,580.80x = 711,457.92 × 193,919.04
  4. Step 4: Simplify right side
    474,580.80x = 137,965,236,846.80
  5. Step 5: Solve for x
    x = 137,965,236,846.80/474,580.80
  6. Step 6: Final answer
    x = 290,709.69

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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.