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Finding the Fourth Proportional to 504,230.81, 695,872.94 and 308,081.27

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Solution

The fourth proportional to 504,230.81, 695,872.94 and 308,081.27 is: 425,173.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,230.81 : 695,872.94 = 308,081.27 : x
  2. Step 2: Convert to fraction form
    504,230.81/695,872.94 = 308,081.27/x
  3. Step 3: Cross multiply
    504,230.81x = 695,872.94 × 308,081.27
  4. Step 4: Simplify right side
    504,230.81x = 214,385,419,113.83
  5. Step 5: Solve for x
    x = 214,385,419,113.83/504,230.81
  6. Step 6: Final answer
    x = 425,173.18

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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.