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Finding the Fourth Proportional to 478,046.84, 659,679.57 and 263,144.93

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Solution

The fourth proportional to 478,046.84, 659,679.57 and 263,144.93 is: 363,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,046.84 : 659,679.57 = 263,144.93 : x
  2. Step 2: Convert to fraction form
    478,046.84/659,679.57 = 263,144.93/x
  3. Step 3: Cross multiply
    478,046.84x = 659,679.57 × 263,144.93
  4. Step 4: Simplify right side
    478,046.84x = 173,591,330,971.68
  5. Step 5: Solve for x
    x = 173,591,330,971.68/478,046.84
  6. Step 6: Final answer
    x = 363,126.20

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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.