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Finding the Fourth Proportional to 508,932.80, 763,399.20 and 333,828.80

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Solution

The fourth proportional to 508,932.80, 763,399.20 and 333,828.80 is: 500,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,932.80 : 763,399.20 = 333,828.80 : x
  2. Step 2: Convert to fraction form
    508,932.80/763,399.20 = 333,828.80/x
  3. Step 3: Cross multiply
    508,932.80x = 763,399.20 × 333,828.80
  4. Step 4: Simplify right side
    508,932.80x = 254,844,638,856.96
  5. Step 5: Solve for x
    x = 254,844,638,856.96/508,932.80
  6. Step 6: Final answer
    x = 500,743.20

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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.