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Finding the Fourth Proportional to 521,569.80, 782,354.70 and 222,060.15

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Solution

The fourth proportional to 521,569.80, 782,354.70 and 222,060.15 is: 333,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,569.80 : 782,354.70 = 222,060.15 : x
  2. Step 2: Convert to fraction form
    521,569.80/782,354.70 = 222,060.15/x
  3. Step 3: Cross multiply
    521,569.80x = 782,354.70 × 222,060.15
  4. Step 4: Simplify right side
    521,569.80x = 173,729,802,035.21
  5. Step 5: Solve for x
    x = 173,729,802,035.21/521,569.80
  6. Step 6: Final answer
    x = 333,090.23

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Similar ratio
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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.