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Finding the Fourth Proportional to 279,620.70, 419,759.10 and 277,652.40

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Solution

The fourth proportional to 279,620.70, 419,759.10 and 277,652.40 is: 416,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,620.70 : 419,759.10 = 277,652.40 : x
  2. Step 2: Convert to fraction form
    279,620.70/419,759.10 = 277,652.40/x
  3. Step 3: Cross multiply
    279,620.70x = 419,759.10 × 277,652.40
  4. Step 4: Simplify right side
    279,620.70x = 116,547,121,536.84
  5. Step 5: Solve for x
    x = 116,547,121,536.84/279,620.70
  6. Step 6: Final answer
    x = 416,804.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.