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Finding the Fourth Proportional to 304,057.20, 455,429.70 and 251,569.20

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Solution

The fourth proportional to 304,057.20, 455,429.70 and 251,569.20 is: 376,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,057.20 : 455,429.70 = 251,569.20 : x
  2. Step 2: Convert to fraction form
    304,057.20/455,429.70 = 251,569.20/x
  3. Step 3: Cross multiply
    304,057.20x = 455,429.70 × 251,569.20
  4. Step 4: Simplify right side
    304,057.20x = 114,572,085,285.24
  5. Step 5: Solve for x
    x = 114,572,085,285.24/304,057.20
  6. Step 6: Final answer
    x = 376,810.96

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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.