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Finding the Fourth Proportional to 451,345.77, 622,828.44 and 247,360.64

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Solution

The fourth proportional to 451,345.77, 622,828.44 and 247,360.64 is: 341,341.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,345.77 : 622,828.44 = 247,360.64 : x
  2. Step 2: Convert to fraction form
    451,345.77/622,828.44 = 247,360.64/x
  3. Step 3: Cross multiply
    451,345.77x = 622,828.44 × 247,360.64
  4. Step 4: Simplify right side
    451,345.77x = 154,063,238,414.46
  5. Step 5: Solve for x
    x = 154,063,238,414.46/451,345.77
  6. Step 6: Final answer
    x = 341,341.93

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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.