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Finding the Fourth Proportional to 521,792.70, 782,105.85 and 222,222.30

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Solution

The fourth proportional to 521,792.70, 782,105.85 and 222,222.30 is: 333,085.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,792.70 : 782,105.85 = 222,222.30 : x
  2. Step 2: Convert to fraction form
    521,792.70/782,105.85 = 222,222.30/x
  3. Step 3: Cross multiply
    521,792.70x = 782,105.85 × 222,222.30
  4. Step 4: Simplify right side
    521,792.70x = 173,801,360,830.46
  5. Step 5: Solve for x
    x = 173,801,360,830.46/521,792.70
  6. Step 6: Final answer
    x = 333,085.08

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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.