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Finding the Fourth Proportional to 414,923.60, 622,385.40 and 370,600.40

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Solution

The fourth proportional to 414,923.60, 622,385.40 and 370,600.40 is: 555,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,923.60 : 622,385.40 = 370,600.40 : x
  2. Step 2: Convert to fraction form
    414,923.60/622,385.40 = 370,600.40/x
  3. Step 3: Cross multiply
    414,923.60x = 622,385.40 × 370,600.40
  4. Step 4: Simplify right side
    414,923.60x = 230,656,278,194.16
  5. Step 5: Solve for x
    x = 230,656,278,194.16/414,923.60
  6. Step 6: Final answer
    x = 555,900.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.