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Finding the Fourth Proportional to 374,572.53, 561,843.90 and 206,426.25

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Solution

The fourth proportional to 374,572.53, 561,843.90 and 206,426.25 is: 309,631.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,572.53 : 561,843.90 = 206,426.25 : x
  2. Step 2: Convert to fraction form
    374,572.53/561,843.90 = 206,426.25/x
  3. Step 3: Cross multiply
    374,572.53x = 561,843.90 × 206,426.25
  4. Step 4: Simplify right side
    374,572.53x = 115,979,329,362.38
  5. Step 5: Solve for x
    x = 115,979,329,362.38/374,572.53
  6. Step 6: Final answer
    x = 309,631.17

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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.