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Finding the Fourth Proportional to 331,276.69, 457,299.17 and 250,726.69

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Solution

The fourth proportional to 331,276.69, 457,299.17 and 250,726.69 is: 346,106.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,276.69 : 457,299.17 = 250,726.69 : x
  2. Step 2: Convert to fraction form
    331,276.69/457,299.17 = 250,726.69/x
  3. Step 3: Cross multiply
    331,276.69x = 457,299.17 × 250,726.69
  4. Step 4: Simplify right side
    331,276.69x = 114,657,107,233.85
  5. Step 5: Solve for x
    x = 114,657,107,233.85/331,276.69
  6. Step 6: Final answer
    x = 346,106.78

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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.