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Finding the Fourth Proportional to 496,000.28, 684,436.56 and 275,243.24

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Solution

The fourth proportional to 496,000.28, 684,436.56 and 275,243.24 is: 379,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,000.28 : 684,436.56 = 275,243.24 : x
  2. Step 2: Convert to fraction form
    496,000.28/684,436.56 = 275,243.24/x
  3. Step 3: Cross multiply
    496,000.28x = 684,436.56 × 275,243.24
  4. Step 4: Simplify right side
    496,000.28x = 188,386,536,348.85
  5. Step 5: Solve for x
    x = 188,386,536,348.85/496,000.28
  6. Step 6: Final answer
    x = 379,811.35

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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.