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Finding the Fourth Proportional to 611,207.50, 915,980.64 and 231,924.34

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Solution

The fourth proportional to 611,207.50, 915,980.64 and 231,924.34 is: 347,571.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,207.50 : 915,980.64 = 231,924.34 : x
  2. Step 2: Convert to fraction form
    611,207.50/915,980.64 = 231,924.34/x
  3. Step 3: Cross multiply
    611,207.50x = 915,980.64 × 231,924.34
  4. Step 4: Simplify right side
    611,207.50x = 212,438,205,384.78
  5. Step 5: Solve for x
    x = 212,438,205,384.78/611,207.50
  6. Step 6: Final answer
    x = 347,571.33

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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.