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Finding the Fourth Proportional to 611,196.08, 916,791.72 and 344,835.44

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Solution

The fourth proportional to 611,196.08, 916,791.72 and 344,835.44 is: 517,251.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,196.08 : 916,791.72 = 344,835.44 : x
  2. Step 2: Convert to fraction form
    611,196.08/916,791.72 = 344,835.44/x
  3. Step 3: Cross multiply
    611,196.08x = 916,791.72 × 344,835.44
  4. Step 4: Simplify right side
    611,196.08x = 316,142,276,154.56
  5. Step 5: Solve for x
    x = 316,142,276,154.56/611,196.08
  6. Step 6: Final answer
    x = 517,251.81

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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.