Home / 782,908.30-1,174,362.45-221,947.66

Finding the Fourth Proportional to 782,908.30, 1,174,362.45 and 221,947.66

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Solution

The fourth proportional to 782,908.30, 1,174,362.45 and 221,947.66 is: 332,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,908.30 : 1,174,362.45 = 221,947.66 : x
  2. Step 2: Convert to fraction form
    782,908.30/1,174,362.45 = 221,947.66/x
  3. Step 3: Cross multiply
    782,908.30x = 1,174,362.45 × 221,947.66
  4. Step 4: Simplify right side
    782,908.30x = 260,646,997,769.37
  5. Step 5: Solve for x
    x = 260,646,997,769.37/782,908.30
  6. Step 6: Final answer
    x = 332,921.49

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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.