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Finding the Fourth Proportional to 474,718.05, 655,111.76 and 259,871.28

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Solution

The fourth proportional to 474,718.05, 655,111.76 and 259,871.28 is: 358,622.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,718.05 : 655,111.76 = 259,871.28 : x
  2. Step 2: Convert to fraction form
    474,718.05/655,111.76 = 259,871.28/x
  3. Step 3: Cross multiply
    474,718.05x = 655,111.76 × 259,871.28
  4. Step 4: Simplify right side
    474,718.05x = 170,244,731,614.25
  5. Step 5: Solve for x
    x = 170,244,731,614.25/474,718.05
  6. Step 6: Final answer
    x = 358,622.83

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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.