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Finding the Fourth Proportional to 383,946.72, 575,378.88 and 181,326.72

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Solution

The fourth proportional to 383,946.72, 575,378.88 and 181,326.72 is: 271,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,946.72 : 575,378.88 = 181,326.72 : x
  2. Step 2: Convert to fraction form
    383,946.72/575,378.88 = 181,326.72/x
  3. Step 3: Cross multiply
    383,946.72x = 575,378.88 × 181,326.72
  4. Step 4: Simplify right side
    383,946.72x = 104,331,565,067.67
  5. Step 5: Solve for x
    x = 104,331,565,067.67/383,946.72
  6. Step 6: Final answer
    x = 271,734.49

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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.