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Finding the Fourth Proportional to 548,627.79, 822,771.51 and 193,558.78

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Solution

The fourth proportional to 548,627.79, 822,771.51 and 193,558.78 is: 290,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,627.79 : 822,771.51 = 193,558.78 : x
  2. Step 2: Convert to fraction form
    548,627.79/822,771.51 = 193,558.78/x
  3. Step 3: Cross multiply
    548,627.79x = 822,771.51 × 193,558.78
  4. Step 4: Simplify right side
    548,627.79x = 159,254,649,694.36
  5. Step 5: Solve for x
    x = 159,254,649,694.36/548,627.79
  6. Step 6: Final answer
    x = 290,278.13

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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.