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Finding the Fourth Proportional to 352,987.93, 487,123.34 and 191,843.36

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Solution

The fourth proportional to 352,987.93, 487,123.34 and 191,843.36 is: 264,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,987.93 : 487,123.34 = 191,843.36 : x
  2. Step 2: Convert to fraction form
    352,987.93/487,123.34 = 191,843.36/x
  3. Step 3: Cross multiply
    352,987.93x = 487,123.34 × 191,843.36
  4. Step 4: Simplify right side
    352,987.93x = 93,451,378,280.02
  5. Step 5: Solve for x
    x = 93,451,378,280.02/352,987.93
  6. Step 6: Final answer
    x = 264,743.83

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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.