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Finding the Fourth Proportional to 1,037,137, 1,555,705.50 and 336,721

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Solution

The fourth proportional to 1,037,137, 1,555,705.50 and 336,721 is: 505,081.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037,137 : 1,555,705.50 = 336,721 : x
  2. Step 2: Convert to fraction form
    1,037,137/1,555,705.50 = 336,721/x
  3. Step 3: Cross multiply
    1,037,137x = 1,555,705.50 × 336,721
  4. Step 4: Simplify right side
    1,037,137x = 523,838,711,665.50
  5. Step 5: Solve for x
    x = 523,838,711,665.50/1,037,137
  6. Step 6: Final answer
    x = 505,081.50

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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.