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Finding the Fourth Proportional to 451,301.22, 622,800.56 and 247,347.74

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Solution

The fourth proportional to 451,301.22, 622,800.56 and 247,347.74 is: 341,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,301.22 : 622,800.56 = 247,347.74 : x
  2. Step 2: Convert to fraction form
    451,301.22/622,800.56 = 247,347.74/x
  3. Step 3: Cross multiply
    451,301.22x = 622,800.56 × 247,347.74
  4. Step 4: Simplify right side
    451,301.22x = 154,048,313,162.11
  5. Step 5: Solve for x
    x = 154,048,313,162.11/451,301.22
  6. Step 6: Final answer
    x = 341,342.56

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1.5x scale

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.