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Finding the Fourth Proportional to 551,728.80, 827,593.20 and 219,304.80

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Solution

The fourth proportional to 551,728.80, 827,593.20 and 219,304.80 is: 328,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,728.80 : 827,593.20 = 219,304.80 : x
  2. Step 2: Convert to fraction form
    551,728.80/827,593.20 = 219,304.80/x
  3. Step 3: Cross multiply
    551,728.80x = 827,593.20 × 219,304.80
  4. Step 4: Simplify right side
    551,728.80x = 181,495,161,207.36
  5. Step 5: Solve for x
    x = 181,495,161,207.36/551,728.80
  6. Step 6: Final answer
    x = 328,957.20

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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.