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Finding the Fourth Proportional to 303,688.20, 454,876.20 and 251,200.20

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Solution

The fourth proportional to 303,688.20, 454,876.20 and 251,200.20 is: 376,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,688.20 : 454,876.20 = 251,200.20 : x
  2. Step 2: Convert to fraction form
    303,688.20/454,876.20 = 251,200.20/x
  3. Step 3: Cross multiply
    303,688.20x = 454,876.20 × 251,200.20
  4. Step 4: Simplify right side
    303,688.20x = 114,264,992,415.24
  5. Step 5: Solve for x
    x = 114,264,992,415.24/303,688.20
  6. Step 6: Final answer
    x = 376,257.60

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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.