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Finding the Fourth Proportional to 331,813.79, 457,903.47 and 180,910.79

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Solution

The fourth proportional to 331,813.79, 457,903.47 and 180,910.79 is: 249,657.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,813.79 : 457,903.47 = 180,910.79 : x
  2. Step 2: Convert to fraction form
    331,813.79/457,903.47 = 180,910.79/x
  3. Step 3: Cross multiply
    331,813.79x = 457,903.47 × 180,910.79
  4. Step 4: Simplify right side
    331,813.79x = 82,839,676,211.92
  5. Step 5: Solve for x
    x = 82,839,676,211.92/331,813.79
  6. Step 6: Final answer
    x = 249,657.13

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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.