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Finding the Fourth Proportional to 504,486.11, 695,467.49 and 396,869.31

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Solution

The fourth proportional to 504,486.11, 695,467.49 and 396,869.31 is: 547,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,486.11 : 695,467.49 = 396,869.31 : x
  2. Step 2: Convert to fraction form
    504,486.11/695,467.49 = 396,869.31/x
  3. Step 3: Cross multiply
    504,486.11x = 695,467.49 × 396,869.31
  4. Step 4: Simplify right side
    504,486.11x = 276,009,700,899.39
  5. Step 5: Solve for x
    x = 276,009,700,899.39/504,486.11
  6. Step 6: Final answer
    x = 547,110.60

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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.