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Finding the Fourth Proportional to 383,886.48, 529,656.99 and 247,926.18

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Solution

The fourth proportional to 383,886.48, 529,656.99 and 247,926.18 is: 342,069.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,886.48 : 529,656.99 = 247,926.18 : x
  2. Step 2: Convert to fraction form
    383,886.48/529,656.99 = 247,926.18/x
  3. Step 3: Cross multiply
    383,886.48x = 529,656.99 × 247,926.18
  4. Step 4: Simplify right side
    383,886.48x = 131,315,834,241.00
  5. Step 5: Solve for x
    x = 131,315,834,241.00/383,886.48
  6. Step 6: Final answer
    x = 342,069.44

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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.