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Finding the Fourth Proportional to 836,608.50, 1,255,109.58 and 275,643

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Solution

The fourth proportional to 836,608.50, 1,255,109.58 and 275,643 is: 413,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,608.50 : 1,255,109.58 = 275,643 : x
  2. Step 2: Convert to fraction form
    836,608.50/1,255,109.58 = 275,643/x
  3. Step 3: Cross multiply
    836,608.50x = 1,255,109.58 × 275,643
  4. Step 4: Simplify right side
    836,608.50x = 345,962,169,959.94
  5. Step 5: Solve for x
    x = 345,962,169,959.94/836,608.50
  6. Step 6: Final answer
    x = 413,529.35

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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.