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Finding the Fourth Proportional to 451,693.87, 623,333.27 and 247,740.63

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Solution

The fourth proportional to 451,693.87, 623,333.27 and 247,740.63 is: 341,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,693.87 : 623,333.27 = 247,740.63 : x
  2. Step 2: Convert to fraction form
    451,693.87/623,333.27 = 247,740.63/x
  3. Step 3: Cross multiply
    451,693.87x = 623,333.27 × 247,740.63
  4. Step 4: Simplify right side
    451,693.87x = 154,424,975,291.61
  5. Step 5: Solve for x
    x = 154,424,975,291.61/451,693.87
  6. Step 6: Final answer
    x = 341,879.73

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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.