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Finding the Fourth Proportional to 352,847.71, 486,894.67 and 199,855.36

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Solution

The fourth proportional to 352,847.71, 486,894.67 and 199,855.36 is: 275,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,847.71 : 486,894.67 = 199,855.36 : x
  2. Step 2: Convert to fraction form
    352,847.71/486,894.67 = 199,855.36/x
  3. Step 3: Cross multiply
    352,847.71x = 486,894.67 × 199,855.36
  4. Step 4: Simplify right side
    352,847.71x = 97,308,509,554.93
  5. Step 5: Solve for x
    x = 97,308,509,554.93/352,847.71
  6. Step 6: Final answer
    x = 275,780.48

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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.