Home / 621,298.49-932,143.35-221,930.42

Finding the Fourth Proportional to 621,298.49, 932,143.35 and 221,930.42

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Solution

The fourth proportional to 621,298.49, 932,143.35 and 221,930.42 is: 332,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,298.49 : 932,143.35 = 221,930.42 : x
  2. Step 2: Convert to fraction form
    621,298.49/932,143.35 = 221,930.42/x
  3. Step 3: Cross multiply
    621,298.49x = 932,143.35 × 221,930.42
  4. Step 4: Simplify right side
    621,298.49x = 206,870,965,165.71
  5. Step 5: Solve for x
    x = 206,870,965,165.71/621,298.49
  6. Step 6: Final answer
    x = 332,965.50

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Double scale
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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.