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Finding the Fourth Proportional to 352,987.14, 487,126.01 and 191,842.20

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Solution

The fourth proportional to 352,987.14, 487,126.01 and 191,842.20 is: 264,744.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,987.14 : 487,126.01 = 191,842.20 : x
  2. Step 2: Convert to fraction form
    352,987.14/487,126.01 = 191,842.20/x
  3. Step 3: Cross multiply
    352,987.14x = 487,126.01 × 191,842.20
  4. Step 4: Simplify right side
    352,987.14x = 93,451,325,435.62
  5. Step 5: Solve for x
    x = 93,451,325,435.62/352,987.14
  6. Step 6: Final answer
    x = 264,744.28

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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.