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Finding the Fourth Proportional to 451,430.52, 622,970.14 and 247,477.73

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Solution

The fourth proportional to 451,430.52, 622,970.14 and 247,477.73 is: 341,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,430.52 : 622,970.14 = 247,477.73 : x
  2. Step 2: Convert to fraction form
    451,430.52/622,970.14 = 247,477.73/x
  3. Step 3: Cross multiply
    451,430.52x = 622,970.14 × 247,477.73
  4. Step 4: Simplify right side
    451,430.52x = 154,171,236,339.67
  5. Step 5: Solve for x
    x = 154,171,236,339.67/451,430.52
  6. Step 6: Final answer
    x = 341,517.09

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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.