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Finding the Fourth Proportional to 504,297.21, 695,921.04 and 274,856.61

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Solution

The fourth proportional to 504,297.21, 695,921.04 and 274,856.61 is: 379,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,297.21 : 695,921.04 = 274,856.61 : x
  2. Step 2: Convert to fraction form
    504,297.21/695,921.04 = 274,856.61/x
  3. Step 3: Cross multiply
    504,297.21x = 695,921.04 × 274,856.61
  4. Step 4: Simplify right side
    504,297.21x = 191,278,497,882.07
  5. Step 5: Solve for x
    x = 191,278,497,882.07/504,297.21
  6. Step 6: Final answer
    x = 379,297.16

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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.