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Finding the Fourth Proportional to 483,392.93, 667,261.89 and 415,135.81

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Solution

The fourth proportional to 483,392.93, 667,261.89 and 415,135.81 is: 573,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,392.93 : 667,261.89 = 415,135.81 : x
  2. Step 2: Convert to fraction form
    483,392.93/667,261.89 = 415,135.81/x
  3. Step 3: Cross multiply
    483,392.93x = 667,261.89 × 415,135.81
  4. Step 4: Simplify right side
    483,392.93x = 277,004,305,187.28
  5. Step 5: Solve for x
    x = 277,004,305,187.28/483,392.93
  6. Step 6: Final answer
    x = 573,041.70

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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.