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Finding the Fourth Proportional to 548,891.40, 822,948.30 and 211,801.80

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Solution

The fourth proportional to 548,891.40, 822,948.30 and 211,801.80 is: 317,552.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,891.40 : 822,948.30 = 211,801.80 : x
  2. Step 2: Convert to fraction form
    548,891.40/822,948.30 = 211,801.80/x
  3. Step 3: Cross multiply
    548,891.40x = 822,948.30 × 211,801.80
  4. Step 4: Simplify right side
    548,891.40x = 174,301,931,246.94
  5. Step 5: Solve for x
    x = 174,301,931,246.94/548,891.40
  6. Step 6: Final answer
    x = 317,552.67

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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.