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Finding the Fourth Proportional to 451,074.06, 622,474.65 and 247,123.08

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Solution

The fourth proportional to 451,074.06, 622,474.65 and 247,123.08 is: 341,025.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,074.06 : 622,474.65 = 247,123.08 : x
  2. Step 2: Convert to fraction form
    451,074.06/622,474.65 = 247,123.08/x
  3. Step 3: Cross multiply
    451,074.06x = 622,474.65 × 247,123.08
  4. Step 4: Simplify right side
    451,074.06x = 153,827,852,729.92
  5. Step 5: Solve for x
    x = 153,827,852,729.92/451,074.06
  6. Step 6: Final answer
    x = 341,025.71

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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.