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Finding the Fourth Proportional to 548,797.07, 822,722.57 and 212,074.00

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Solution

The fourth proportional to 548,797.07, 822,722.57 and 212,074.00 is: 317,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,797.07 : 822,722.57 = 212,074.00 : x
  2. Step 2: Convert to fraction form
    548,797.07/822,722.57 = 212,074.00/x
  3. Step 3: Cross multiply
    548,797.07x = 822,722.57 × 212,074.00
  4. Step 4: Simplify right side
    548,797.07x = 174,478,063,988.28
  5. Step 5: Solve for x
    x = 174,478,063,988.28/548,797.07
  6. Step 6: Final answer
    x = 317,928.20

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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.