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Finding the Fourth Proportional to 451,615.53, 623,172.15 and 247,612.77

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Solution

The fourth proportional to 451,615.53, 623,172.15 and 247,612.77 is: 341,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,615.53 : 623,172.15 = 247,612.77 : x
  2. Step 2: Convert to fraction form
    451,615.53/623,172.15 = 247,612.77/x
  3. Step 3: Cross multiply
    451,615.53x = 623,172.15 × 247,612.77
  4. Step 4: Simplify right side
    451,615.53x = 154,305,381,234.67
  5. Step 5: Solve for x
    x = 154,305,381,234.67/451,615.53
  6. Step 6: Final answer
    x = 341,674.21

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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.