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Finding the Fourth Proportional to 352,488.66, 486,434.97 and 191,343.82

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Solution

The fourth proportional to 352,488.66, 486,434.97 and 191,343.82 is: 264,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,488.66 : 486,434.97 = 191,343.82 : x
  2. Step 2: Convert to fraction form
    352,488.66/486,434.97 = 191,343.82/x
  3. Step 3: Cross multiply
    352,488.66x = 486,434.97 × 191,343.82
  4. Step 4: Simplify right side
    352,488.66x = 93,076,325,037.36
  5. Step 5: Solve for x
    x = 93,076,325,037.36/352,488.66
  6. Step 6: Final answer
    x = 264,054.81

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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.