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Finding the Fourth Proportional to 411,997.71, 568,556.76 and 228,248.22

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Solution

The fourth proportional to 411,997.71, 568,556.76 and 228,248.22 is: 314,982.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,997.71 : 568,556.76 = 228,248.22 : x
  2. Step 2: Convert to fraction form
    411,997.71/568,556.76 = 228,248.22/x
  3. Step 3: Cross multiply
    411,997.71x = 568,556.76 × 228,248.22
  4. Step 4: Simplify right side
    411,997.71x = 129,772,069,185.97
  5. Step 5: Solve for x
    x = 129,772,069,185.97/411,997.71
  6. Step 6: Final answer
    x = 314,982.50

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.