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Finding the Fourth Proportional to 436,906.78, 602,892.90 and 243,299.86

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Solution

The fourth proportional to 436,906.78, 602,892.90 and 243,299.86 is: 335,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,906.78 : 602,892.90 = 243,299.86 : x
  2. Step 2: Convert to fraction form
    436,906.78/602,892.90 = 243,299.86/x
  3. Step 3: Cross multiply
    436,906.78x = 602,892.90 × 243,299.86
  4. Step 4: Simplify right side
    436,906.78x = 146,683,758,164.99
  5. Step 5: Solve for x
    x = 146,683,758,164.99/436,906.78
  6. Step 6: Final answer
    x = 335,732.39

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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.