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Finding the Fourth Proportional to 483,418.68, 666,822.16 and 287,052.04

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Solution

The fourth proportional to 483,418.68, 666,822.16 and 287,052.04 is: 395,956.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,418.68 : 666,822.16 = 287,052.04 : x
  2. Step 2: Convert to fraction form
    483,418.68/666,822.16 = 287,052.04/x
  3. Step 3: Cross multiply
    483,418.68x = 666,822.16 × 287,052.04
  4. Step 4: Simplify right side
    483,418.68x = 191,412,661,345.21
  5. Step 5: Solve for x
    x = 191,412,661,345.21/483,418.68
  6. Step 6: Final answer
    x = 395,956.28

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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.