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Finding the Fourth Proportional to 611,013.28, 916,600.42 and 226,709.86

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Solution

The fourth proportional to 611,013.28, 916,600.42 and 226,709.86 is: 340,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,013.28 : 916,600.42 = 226,709.86 : x
  2. Step 2: Convert to fraction form
    611,013.28/916,600.42 = 226,709.86/x
  3. Step 3: Cross multiply
    611,013.28x = 916,600.42 × 226,709.86
  4. Step 4: Simplify right side
    611,013.28x = 207,802,352,894.14
  5. Step 5: Solve for x
    x = 207,802,352,894.14/611,013.28
  6. Step 6: Final answer
    x = 340,094.66

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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.