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Finding the Fourth Proportional to 451,708.86, 623,353.98 and 247,755.60

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Solution

The fourth proportional to 451,708.86, 623,353.98 and 247,755.60 is: 341,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,708.86 : 623,353.98 = 247,755.60 : x
  2. Step 2: Convert to fraction form
    451,708.86/623,353.98 = 247,755.60/x
  3. Step 3: Cross multiply
    451,708.86x = 623,353.98 × 247,755.60
  4. Step 4: Simplify right side
    451,708.86x = 154,439,439,327.29
  5. Step 5: Solve for x
    x = 154,439,439,327.29/451,708.86
  6. Step 6: Final answer
    x = 341,900.40

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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.