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Finding the Fourth Proportional to 496,796.01, 685,576.53 and 278,974.38

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Solution

The fourth proportional to 496,796.01, 685,576.53 and 278,974.38 is: 384,983.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,796.01 : 685,576.53 = 278,974.38 : x
  2. Step 2: Convert to fraction form
    496,796.01/685,576.53 = 278,974.38/x
  3. Step 3: Cross multiply
    496,796.01x = 685,576.53 × 278,974.38
  4. Step 4: Simplify right side
    496,796.01x = 191,258,282,576.55
  5. Step 5: Solve for x
    x = 191,258,282,576.55/496,796.01
  6. Step 6: Final answer
    x = 384,983.53

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1.5x scale

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.