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Finding the Fourth Proportional to 531,938.80, 797,908.20 and 216,233.20

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Solution

The fourth proportional to 531,938.80, 797,908.20 and 216,233.20 is: 324,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,938.80 : 797,908.20 = 216,233.20 : x
  2. Step 2: Convert to fraction form
    531,938.80/797,908.20 = 216,233.20/x
  3. Step 3: Cross multiply
    531,938.80x = 797,908.20 × 216,233.20
  4. Step 4: Simplify right side
    531,938.80x = 172,534,243,392.24
  5. Step 5: Solve for x
    x = 172,534,243,392.24/531,938.80
  6. Step 6: Final answer
    x = 324,349.80

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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.