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Finding the Fourth Proportional to 521,684.70, 782,235.45 and 222,114.30

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Solution

The fourth proportional to 521,684.70, 782,235.45 and 222,114.30 is: 333,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,684.70 : 782,235.45 = 222,114.30 : x
  2. Step 2: Convert to fraction form
    521,684.70/782,235.45 = 222,114.30/x
  3. Step 3: Cross multiply
    521,684.70x = 782,235.45 × 222,114.30
  4. Step 4: Simplify right side
    521,684.70x = 173,745,679,411.94
  5. Step 5: Solve for x
    x = 173,745,679,411.94/521,684.70
  6. Step 6: Final answer
    x = 333,047.30

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1.5x scale

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.