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Finding the Fourth Proportional to 352,424.70, 486,346.50 and 191,279.73

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Solution

The fourth proportional to 352,424.70, 486,346.50 and 191,279.73 is: 263,966.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,424.70 : 486,346.50 = 191,279.73 : x
  2. Step 2: Convert to fraction form
    352,424.70/486,346.50 = 191,279.73/x
  3. Step 3: Cross multiply
    352,424.70x = 486,346.50 × 191,279.73
  4. Step 4: Simplify right side
    352,424.70x = 93,028,227,206.45
  5. Step 5: Solve for x
    x = 93,028,227,206.45/352,424.70
  6. Step 6: Final answer
    x = 263,966.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.