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Finding the Fourth Proportional to 548,892.90, 822,950.55 and 211,803.30

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Solution

The fourth proportional to 548,892.90, 822,950.55 and 211,803.30 is: 317,554.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,892.90 : 822,950.55 = 211,803.30 : x
  2. Step 2: Convert to fraction form
    548,892.90/822,950.55 = 211,803.30/x
  3. Step 3: Cross multiply
    548,892.90x = 822,950.55 × 211,803.30
  4. Step 4: Simplify right side
    548,892.90x = 174,303,642,226.82
  5. Step 5: Solve for x
    x = 174,303,642,226.82/548,892.90
  6. Step 6: Final answer
    x = 317,554.92

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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.