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Finding the Fourth Proportional to 484,596.45, 726,894.50 and 129,601.25

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Solution

The fourth proportional to 484,596.45, 726,894.50 and 129,601.25 is: 194,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,596.45 : 726,894.50 = 129,601.25 : x
  2. Step 2: Convert to fraction form
    484,596.45/726,894.50 = 129,601.25/x
  3. Step 3: Cross multiply
    484,596.45x = 726,894.50 × 129,601.25
  4. Step 4: Simplify right side
    484,596.45x = 94,206,435,818.13
  5. Step 5: Solve for x
    x = 94,206,435,818.13/484,596.45
  6. Step 6: Final answer
    x = 194,401.83

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1.5x scale

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.