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Finding the Fourth Proportional to 451,027.45, 622,416.04 and 247,078.08

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Solution

The fourth proportional to 451,027.45, 622,416.04 and 247,078.08 is: 340,966.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,027.45 : 622,416.04 = 247,078.08 : x
  2. Step 2: Convert to fraction form
    451,027.45/622,416.04 = 247,078.08/x
  3. Step 3: Cross multiply
    451,027.45x = 622,416.04 × 247,078.08
  4. Step 4: Simplify right side
    451,027.45x = 153,785,360,124.40
  5. Step 5: Solve for x
    x = 153,785,360,124.40/451,027.45
  6. Step 6: Final answer
    x = 340,966.74

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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.