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Finding the Fourth Proportional to 655,959.40, 983,939.10 and 235,277.80

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Solution

The fourth proportional to 655,959.40, 983,939.10 and 235,277.80 is: 352,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,959.40 : 983,939.10 = 235,277.80 : x
  2. Step 2: Convert to fraction form
    655,959.40/983,939.10 = 235,277.80/x
  3. Step 3: Cross multiply
    655,959.40x = 983,939.10 × 235,277.80
  4. Step 4: Simplify right side
    655,959.40x = 231,499,026,781.98
  5. Step 5: Solve for x
    x = 231,499,026,781.98/655,959.40
  6. Step 6: Final answer
    x = 352,916.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.