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Finding the Fourth Proportional to 369,067.20, 552,823.20 and 306,859.20

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Solution

The fourth proportional to 369,067.20, 552,823.20 and 306,859.20 is: 459,642.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,067.20 : 552,823.20 = 306,859.20 : x
  2. Step 2: Convert to fraction form
    369,067.20/552,823.20 = 306,859.20/x
  3. Step 3: Cross multiply
    369,067.20x = 552,823.20 × 306,859.20
  4. Step 4: Simplify right side
    369,067.20x = 169,638,884,893.44
  5. Step 5: Solve for x
    x = 169,638,884,893.44/369,067.20
  6. Step 6: Final answer
    x = 459,642.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.