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Finding the Fourth Proportional to 474,812.64, 655,216.56 and 259,911.54

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Solution

The fourth proportional to 474,812.64, 655,216.56 and 259,911.54 is: 358,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,812.64 : 655,216.56 = 259,911.54 : x
  2. Step 2: Convert to fraction form
    474,812.64/655,216.56 = 259,911.54/x
  3. Step 3: Cross multiply
    474,812.64x = 655,216.56 × 259,911.54
  4. Step 4: Simplify right side
    474,812.64x = 170,298,345,143.10
  5. Step 5: Solve for x
    x = 170,298,345,143.10/474,812.64
  6. Step 6: Final answer
    x = 358,664.30

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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.