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Finding the Fourth Proportional to 548,371.68, 756,773.55 and 306,653.66

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Solution

The fourth proportional to 548,371.68, 756,773.55 and 306,653.66 is: 423,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,371.68 : 756,773.55 = 306,653.66 : x
  2. Step 2: Convert to fraction form
    548,371.68/756,773.55 = 306,653.66/x
  3. Step 3: Cross multiply
    548,371.68x = 756,773.55 × 306,653.66
  4. Step 4: Simplify right side
    548,371.68x = 232,067,378,898.69
  5. Step 5: Solve for x
    x = 232,067,378,898.69/548,371.68
  6. Step 6: Final answer
    x = 423,193.59

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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.