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Finding the Fourth Proportional to 414,693.40, 622,696.20 and 314,966.20

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Solution

The fourth proportional to 414,693.40, 622,696.20 and 314,966.20 is: 472,947.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,693.40 : 622,696.20 = 314,966.20 : x
  2. Step 2: Convert to fraction form
    414,693.40/622,696.20 = 314,966.20/x
  3. Step 3: Cross multiply
    414,693.40x = 622,696.20 × 314,966.20
  4. Step 4: Simplify right side
    414,693.40x = 196,128,255,868.44
  5. Step 5: Solve for x
    x = 196,128,255,868.44/414,693.40
  6. Step 6: Final answer
    x = 472,947.62

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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.