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Finding the Fourth Proportional to 346,326.72, 477,908.28 and 193,379.28

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Solution

The fourth proportional to 346,326.72, 477,908.28 and 193,379.28 is: 266,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,326.72 : 477,908.28 = 193,379.28 : x
  2. Step 2: Convert to fraction form
    346,326.72/477,908.28 = 193,379.28/x
  3. Step 3: Cross multiply
    346,326.72x = 477,908.28 × 193,379.28
  4. Step 4: Simplify right side
    346,326.72x = 92,417,559,092.44
  5. Step 5: Solve for x
    x = 92,417,559,092.44/346,326.72
  6. Step 6: Final answer
    x = 266,850.79

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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.