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Finding the Fourth Proportional to 322,688.21, 483,968.52 and 306,685.44

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Solution

The fourth proportional to 322,688.21, 483,968.52 and 306,685.44 is: 459,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,688.21 : 483,968.52 = 306,685.44 : x
  2. Step 2: Convert to fraction form
    322,688.21/483,968.52 = 306,685.44/x
  3. Step 3: Cross multiply
    322,688.21x = 483,968.52 × 306,685.44
  4. Step 4: Simplify right side
    322,688.21x = 148,426,098,502.35
  5. Step 5: Solve for x
    x = 148,426,098,502.35/322,688.21
  6. Step 6: Final answer
    x = 459,967.54

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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.