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Finding the Fourth Proportional to 339,701.70, 509,552.55 and 245,223.30

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Solution

The fourth proportional to 339,701.70, 509,552.55 and 245,223.30 is: 367,834.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,701.70 : 509,552.55 = 245,223.30 : x
  2. Step 2: Convert to fraction form
    339,701.70/509,552.55 = 245,223.30/x
  3. Step 3: Cross multiply
    339,701.70x = 509,552.55 × 245,223.30
  4. Step 4: Simplify right side
    339,701.70x = 124,954,157,834.42
  5. Step 5: Solve for x
    x = 124,954,157,834.42/339,701.70
  6. Step 6: Final answer
    x = 367,834.95

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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.