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Finding the Fourth Proportional to 474,905.43, 655,369.11 and 260,049.69

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Solution

The fourth proportional to 474,905.43, 655,369.11 and 260,049.69 is: 358,868.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,905.43 : 655,369.11 = 260,049.69 : x
  2. Step 2: Convert to fraction form
    474,905.43/655,369.11 = 260,049.69/x
  3. Step 3: Cross multiply
    474,905.43x = 655,369.11 × 260,049.69
  4. Step 4: Simplify right side
    474,905.43x = 170,428,533,891.08
  5. Step 5: Solve for x
    x = 170,428,533,891.08/474,905.43
  6. Step 6: Final answer
    x = 358,868.36

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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.