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Finding the Fourth Proportional to 352,415.10, 486,333.31 and 191,270.15

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Solution

The fourth proportional to 352,415.10, 486,333.31 and 191,270.15 is: 263,953.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,415.10 : 486,333.31 = 191,270.15 : x
  2. Step 2: Convert to fraction form
    352,415.10/486,333.31 = 191,270.15/x
  3. Step 3: Cross multiply
    352,415.10x = 486,333.31 × 191,270.15
  4. Step 4: Simplify right side
    352,415.10x = 93,021,041,765.68
  5. Step 5: Solve for x
    x = 93,021,041,765.68/352,415.10
  6. Step 6: Final answer
    x = 263,953.06

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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.