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Finding the Fourth Proportional to 369,640.36, 551,786.54 and 324,800.20

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Solution

The fourth proportional to 369,640.36, 551,786.54 and 324,800.20 is: 484,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,640.36 : 551,786.54 = 324,800.20 : x
  2. Step 2: Convert to fraction form
    369,640.36/551,786.54 = 324,800.20/x
  3. Step 3: Cross multiply
    369,640.36x = 551,786.54 × 324,800.20
  4. Step 4: Simplify right side
    369,640.36x = 179,220,378,549.31
  5. Step 5: Solve for x
    x = 179,220,378,549.31/369,640.36
  6. Step 6: Final answer
    x = 484,850.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.