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Finding the Fourth Proportional to 474,719.05, 655,113.14 and 259,872.28

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Solution

The fourth proportional to 474,719.05, 655,113.14 and 259,872.28 is: 358,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,719.05 : 655,113.14 = 259,872.28 : x
  2. Step 2: Convert to fraction form
    474,719.05/655,113.14 = 259,872.28/x
  3. Step 3: Cross multiply
    474,719.05x = 655,113.14 × 259,872.28
  4. Step 4: Simplify right side
    474,719.05x = 170,245,745,349.76
  5. Step 5: Solve for x
    x = 170,245,745,349.76/474,719.05
  6. Step 6: Final answer
    x = 358,624.21

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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.