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Finding the Fourth Proportional to 474,665.64, 655,039.38 and 259,819.32

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Solution

The fourth proportional to 474,665.64, 655,039.38 and 259,819.32 is: 358,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,665.64 : 655,039.38 = 259,819.32 : x
  2. Step 2: Convert to fraction form
    474,665.64/655,039.38 = 259,819.32/x
  3. Step 3: Cross multiply
    474,665.64x = 655,039.38 × 259,819.32
  4. Step 4: Simplify right side
    474,665.64x = 170,191,886,284.82
  5. Step 5: Solve for x
    x = 170,191,886,284.82/474,665.64
  6. Step 6: Final answer
    x = 358,551.10

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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.