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Finding the Fourth Proportional to 323,849.10, 485,773.65 and 302,853.90

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Solution

The fourth proportional to 323,849.10, 485,773.65 and 302,853.90 is: 454,280.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,849.10 : 485,773.65 = 302,853.90 : x
  2. Step 2: Convert to fraction form
    323,849.10/485,773.65 = 302,853.90/x
  3. Step 3: Cross multiply
    323,849.10x = 485,773.65 × 302,853.90
  4. Step 4: Simplify right side
    323,849.10x = 147,118,444,419.74
  5. Step 5: Solve for x
    x = 147,118,444,419.74/323,849.10
  6. Step 6: Final answer
    x = 454,280.85

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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.