Home / 621,813.20-932,719.80-222,485.30

Finding the Fourth Proportional to 621,813.20, 932,719.80 and 222,485.30

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Solution

The fourth proportional to 621,813.20, 932,719.80 and 222,485.30 is: 333,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,813.20 : 932,719.80 = 222,485.30 : x
  2. Step 2: Convert to fraction form
    621,813.20/932,719.80 = 222,485.30/x
  3. Step 3: Cross multiply
    621,813.20x = 932,719.80 × 222,485.30
  4. Step 4: Simplify right side
    621,813.20x = 207,516,444,518.94
  5. Step 5: Solve for x
    x = 207,516,444,518.94/621,813.20
  6. Step 6: Final answer
    x = 333,727.95

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Double scale
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Similar ratio
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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.