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Finding the Fourth Proportional to 352,999.09, 487,135.83 and 191,855.12

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Solution

The fourth proportional to 352,999.09, 487,135.83 and 191,855.12 is: 264,758.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,999.09 : 487,135.83 = 191,855.12 : x
  2. Step 2: Convert to fraction form
    352,999.09/487,135.83 = 191,855.12/x
  3. Step 3: Cross multiply
    352,999.09x = 487,135.83 × 191,855.12
  4. Step 4: Simplify right side
    352,999.09x = 93,459,500,685.27
  5. Step 5: Solve for x
    x = 93,459,500,685.27/352,999.09
  6. Step 6: Final answer
    x = 264,758.47

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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.