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Finding the Fourth Proportional to 346,195, 477,691.39 and 231,289.41

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Solution

The fourth proportional to 346,195, 477,691.39 and 231,289.41 is: 319,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,195 : 477,691.39 = 231,289.41 : x
  2. Step 2: Convert to fraction form
    346,195/477,691.39 = 231,289.41/x
  3. Step 3: Cross multiply
    346,195x = 477,691.39 × 231,289.41
  4. Step 4: Simplify right side
    346,195x = 110,484,959,755.18
  5. Step 5: Solve for x
    x = 110,484,959,755.18/346,195
  6. Step 6: Final answer
    x = 319,140.83

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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.