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Finding the Fourth Proportional to 475,409.22, 655,686.81 and 404,025.54

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Solution

The fourth proportional to 475,409.22, 655,686.81 and 404,025.54 is: 557,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,409.22 : 655,686.81 = 404,025.54 : x
  2. Step 2: Convert to fraction form
    475,409.22/655,686.81 = 404,025.54/x
  3. Step 3: Cross multiply
    475,409.22x = 655,686.81 × 404,025.54
  4. Step 4: Simplify right side
    475,409.22x = 264,914,217,481.13
  5. Step 5: Solve for x
    x = 264,914,217,481.13/475,409.22
  6. Step 6: Final answer
    x = 557,234.08

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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.