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Finding the Fourth Proportional to 436,955.04, 654,966 and 311,916.96

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Solution

The fourth proportional to 436,955.04, 654,966 and 311,916.96 is: 467,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,955.04 : 654,966 = 311,916.96 : x
  2. Step 2: Convert to fraction form
    436,955.04/654,966 = 311,916.96/x
  3. Step 3: Cross multiply
    436,955.04x = 654,966 × 311,916.96
  4. Step 4: Simplify right side
    436,955.04x = 204,295,003,623.36
  5. Step 5: Solve for x
    x = 204,295,003,623.36/436,955.04
  6. Step 6: Final answer
    x = 467,542.39

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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.