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Finding the Fourth Proportional to 450,979.57, 622,327.71 and 247,019.95

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Solution

The fourth proportional to 450,979.57, 622,327.71 and 247,019.95 is: 340,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,979.57 : 622,327.71 = 247,019.95 : x
  2. Step 2: Convert to fraction form
    450,979.57/622,327.71 = 247,019.95/x
  3. Step 3: Cross multiply
    450,979.57x = 622,327.71 × 247,019.95
  4. Step 4: Simplify right side
    450,979.57x = 153,727,359,807.81
  5. Step 5: Solve for x
    x = 153,727,359,807.81/450,979.57
  6. Step 6: Final answer
    x = 340,874.33

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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.