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Finding the Fourth Proportional to 328,297.55, 453,261.43 and 205,957.62

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Solution

The fourth proportional to 328,297.55, 453,261.43 and 205,957.62 is: 284,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,297.55 : 453,261.43 = 205,957.62 : x
  2. Step 2: Convert to fraction form
    328,297.55/453,261.43 = 205,957.62/x
  3. Step 3: Cross multiply
    328,297.55x = 453,261.43 × 205,957.62
  4. Step 4: Simplify right side
    328,297.55x = 93,352,646,648.32
  5. Step 5: Solve for x
    x = 93,352,646,648.32/328,297.55
  6. Step 6: Final answer
    x = 284,353.77

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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.