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Finding the Fourth Proportional to 551,424.89, 826,685.35 and 196,236.65

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Solution

The fourth proportional to 551,424.89, 826,685.35 and 196,236.65 is: 294,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,424.89 : 826,685.35 = 196,236.65 : x
  2. Step 2: Convert to fraction form
    551,424.89/826,685.35 = 196,236.65/x
  3. Step 3: Cross multiply
    551,424.89x = 826,685.35 × 196,236.65
  4. Step 4: Simplify right side
    551,424.89x = 162,225,963,688.08
  5. Step 5: Solve for x
    x = 162,225,963,688.08/551,424.89
  6. Step 6: Final answer
    x = 294,194.13

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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.