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Finding the Fourth Proportional to 303,965.70, 455,292.45 and 251,477.70

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Solution

The fourth proportional to 303,965.70, 455,292.45 and 251,477.70 is: 376,673.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,965.70 : 455,292.45 = 251,477.70 : x
  2. Step 2: Convert to fraction form
    303,965.70/455,292.45 = 251,477.70/x
  3. Step 3: Cross multiply
    303,965.70x = 455,292.45 × 251,477.70
  4. Step 4: Simplify right side
    303,965.70x = 114,495,898,153.37
  5. Step 5: Solve for x
    x = 114,495,898,153.37/303,965.70
  6. Step 6: Final answer
    x = 376,673.74

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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.