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Finding the Fourth Proportional to 352,425.43, 486,347.54 and 191,280.49

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Solution

The fourth proportional to 352,425.43, 486,347.54 and 191,280.49 is: 263,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,425.43 : 486,347.54 = 191,280.49 : x
  2. Step 2: Convert to fraction form
    352,425.43/486,347.54 = 191,280.49/x
  3. Step 3: Cross multiply
    352,425.43x = 486,347.54 × 191,280.49
  4. Step 4: Simplify right side
    352,425.43x = 93,028,794,665.18
  5. Step 5: Solve for x
    x = 93,028,794,665.18/352,425.43
  6. Step 6: Final answer
    x = 263,967.31

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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.