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Finding the Fourth Proportional to 551,996.80, 827,995.20 and 197,411.20

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Solution

The fourth proportional to 551,996.80, 827,995.20 and 197,411.20 is: 296,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,996.80 : 827,995.20 = 197,411.20 : x
  2. Step 2: Convert to fraction form
    551,996.80/827,995.20 = 197,411.20/x
  3. Step 3: Cross multiply
    551,996.80x = 827,995.20 × 197,411.20
  4. Step 4: Simplify right side
    551,996.80x = 163,455,526,026.24
  5. Step 5: Solve for x
    x = 163,455,526,026.24/551,996.80
  6. Step 6: Final answer
    x = 296,116.80

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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.