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Finding the Fourth Proportional to 474,688.49, 655,086.78 and 259,828.73

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Solution

The fourth proportional to 474,688.49, 655,086.78 and 259,828.73 is: 358,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,688.49 : 655,086.78 = 259,828.73 : x
  2. Step 2: Convert to fraction form
    474,688.49/655,086.78 = 259,828.73/x
  3. Step 3: Cross multiply
    474,688.49x = 655,086.78 × 259,828.73
  4. Step 4: Simplify right side
    474,688.49x = 170,210,366,087.19
  5. Step 5: Solve for x
    x = 170,210,366,087.19/474,688.49
  6. Step 6: Final answer
    x = 358,572.77

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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.