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Finding the Fourth Proportional to 332,553.80, 498,830.70 and 289,251.20

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Solution

The fourth proportional to 332,553.80, 498,830.70 and 289,251.20 is: 433,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,553.80 : 498,830.70 = 289,251.20 : x
  2. Step 2: Convert to fraction form
    332,553.80/498,830.70 = 289,251.20/x
  3. Step 3: Cross multiply
    332,553.80x = 498,830.70 × 289,251.20
  4. Step 4: Simplify right side
    332,553.80x = 144,287,378,571.84
  5. Step 5: Solve for x
    x = 144,287,378,571.84/332,553.80
  6. Step 6: Final answer
    x = 433,876.80

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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.