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Finding the Fourth Proportional to 625,735.07, 863,520.37 and 339,255.89

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Solution

The fourth proportional to 625,735.07, 863,520.37 and 339,255.89 is: 468,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,735.07 : 863,520.37 = 339,255.89 : x
  2. Step 2: Convert to fraction form
    625,735.07/863,520.37 = 339,255.89/x
  3. Step 3: Cross multiply
    625,735.07x = 863,520.37 × 339,255.89
  4. Step 4: Simplify right side
    625,735.07x = 292,954,366,491.74
  5. Step 5: Solve for x
    x = 292,954,366,491.74/625,735.07
  6. Step 6: Final answer
    x = 468,176.36

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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.