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Finding the Fourth Proportional to 352,388.50, 486,296.38 and 191,243.51

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Solution

The fourth proportional to 352,388.50, 486,296.38 and 191,243.51 is: 263,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,388.50 : 486,296.38 = 191,243.51 : x
  2. Step 2: Convert to fraction form
    352,388.50/486,296.38 = 191,243.51/x
  3. Step 3: Cross multiply
    352,388.50x = 486,296.38 × 191,243.51
  4. Step 4: Simplify right side
    352,388.50x = 93,001,025,412.84
  5. Step 5: Solve for x
    x = 93,001,025,412.84/352,388.50
  6. Step 6: Final answer
    x = 263,916.18

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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.