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Finding the Fourth Proportional to 836,609.50, 1,255,111.08 and 275,644

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Solution

The fourth proportional to 836,609.50, 1,255,111.08 and 275,644 is: 413,530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,609.50 : 1,255,111.08 = 275,644 : x
  2. Step 2: Convert to fraction form
    836,609.50/1,255,111.08 = 275,644/x
  3. Step 3: Cross multiply
    836,609.50x = 1,255,111.08 × 275,644
  4. Step 4: Simplify right side
    836,609.50x = 345,963,838,535.52
  5. Step 5: Solve for x
    x = 345,963,838,535.52/836,609.50
  6. Step 6: Final answer
    x = 413,530.85

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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.