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Finding the Fourth Proportional to 364,788.78, 503,162.73 and 316,959.90

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Solution

The fourth proportional to 364,788.78, 503,162.73 and 316,959.90 is: 437,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,788.78 : 503,162.73 = 316,959.90 : x
  2. Step 2: Convert to fraction form
    364,788.78/503,162.73 = 316,959.90/x
  3. Step 3: Cross multiply
    364,788.78x = 503,162.73 × 316,959.90
  4. Step 4: Simplify right side
    364,788.78x = 159,482,408,584.53
  5. Step 5: Solve for x
    x = 159,482,408,584.53/364,788.78
  6. Step 6: Final answer
    x = 437,191.10

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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.