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Finding the Fourth Proportional to 504,559.74, 695,568.95 and 396,942.87

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Solution

The fourth proportional to 504,559.74, 695,568.95 and 396,942.87 is: 547,211.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,559.74 : 695,568.95 = 396,942.87 : x
  2. Step 2: Convert to fraction form
    504,559.74/695,568.95 = 396,942.87/x
  3. Step 3: Cross multiply
    504,559.74x = 695,568.95 × 396,942.87
  4. Step 4: Simplify right side
    504,559.74x = 276,101,135,295.89
  5. Step 5: Solve for x
    x = 276,101,135,295.89/504,559.74
  6. Step 6: Final answer
    x = 547,211.98

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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.