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Finding the Fourth Proportional to 414,935.40, 622,403.10 and 410,998.80

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Solution

The fourth proportional to 414,935.40, 622,403.10 and 410,998.80 is: 616,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,935.40 : 622,403.10 = 410,998.80 : x
  2. Step 2: Convert to fraction form
    414,935.40/622,403.10 = 410,998.80/x
  3. Step 3: Cross multiply
    414,935.40x = 622,403.10 × 410,998.80
  4. Step 4: Simplify right side
    414,935.40x = 255,806,927,216.28
  5. Step 5: Solve for x
    x = 255,806,927,216.28/414,935.40
  6. Step 6: Final answer
    x = 616,498.20

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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.