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Finding the Fourth Proportional to 352,389.75, 486,298.11 and 191,244.76

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Solution

The fourth proportional to 352,389.75, 486,298.11 and 191,244.76 is: 263,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,389.75 : 486,298.11 = 191,244.76 : x
  2. Step 2: Convert to fraction form
    352,389.75/486,298.11 = 191,244.76/x
  3. Step 3: Cross multiply
    352,389.75x = 486,298.11 × 191,244.76
  4. Step 4: Simplify right side
    352,389.75x = 93,001,964,379.18
  5. Step 5: Solve for x
    x = 93,001,964,379.18/352,389.75
  6. Step 6: Final answer
    x = 263,917.90

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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.