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Finding the Fourth Proportional to 346,279.59, 477,889.97 and 193,347.86

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Solution

The fourth proportional to 346,279.59, 477,889.97 and 193,347.86 is: 266,833.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,279.59 : 477,889.97 = 193,347.86 : x
  2. Step 2: Convert to fraction form
    346,279.59/477,889.97 = 193,347.86/x
  3. Step 3: Cross multiply
    346,279.59x = 477,889.97 × 193,347.86
  4. Step 4: Simplify right side
    346,279.59x = 92,398,999,658.78
  5. Step 5: Solve for x
    x = 92,398,999,658.78/346,279.59
  6. Step 6: Final answer
    x = 266,833.51

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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.