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Finding the Fourth Proportional to 352,812.80, 486,879.72 and 191,666.56

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Solution

The fourth proportional to 352,812.80, 486,879.72 and 191,666.56 is: 264,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,812.80 : 486,879.72 = 191,666.56 : x
  2. Step 2: Convert to fraction form
    352,812.80/486,879.72 = 191,666.56/x
  3. Step 3: Cross multiply
    352,812.80x = 486,879.72 × 191,666.56
  4. Step 4: Simplify right side
    352,812.80x = 93,318,561,066.16
  5. Step 5: Solve for x
    x = 93,318,561,066.16/352,812.80
  6. Step 6: Final answer
    x = 264,498.80

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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.