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Finding the Fourth Proportional to 303,923.70, 455,229.45 and 251,435.70

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Solution

The fourth proportional to 303,923.70, 455,229.45 and 251,435.70 is: 376,610.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,923.70 : 455,229.45 = 251,435.70 : x
  2. Step 2: Convert to fraction form
    303,923.70/455,229.45 = 251,435.70/x
  3. Step 3: Cross multiply
    303,923.70x = 455,229.45 × 251,435.70
  4. Step 4: Simplify right side
    303,923.70x = 114,460,935,421.37
  5. Step 5: Solve for x
    x = 114,460,935,421.37/303,923.70
  6. Step 6: Final answer
    x = 376,610.76

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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.