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Finding the Fourth Proportional to 451,543.46, 623,137 and 247,613

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Solution

The fourth proportional to 451,543.46, 623,137 and 247,613 is: 341,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,543.46 : 623,137 = 247,613 : x
  2. Step 2: Convert to fraction form
    451,543.46/623,137 = 247,613/x
  3. Step 3: Cross multiply
    451,543.46x = 623,137 × 247,613
  4. Step 4: Simplify right side
    451,543.46x = 154,296,821,981
  5. Step 5: Solve for x
    x = 154,296,821,981/451,543.46
  6. Step 6: Final answer
    x = 341,709.79

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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.