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Finding the Fourth Proportional to 647,828.16, 894,020.13 and 361,404.06

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Solution

The fourth proportional to 647,828.16, 894,020.13 and 361,404.06 is: 498,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,828.16 : 894,020.13 = 361,404.06 : x
  2. Step 2: Convert to fraction form
    647,828.16/894,020.13 = 361,404.06/x
  3. Step 3: Cross multiply
    647,828.16x = 894,020.13 × 361,404.06
  4. Step 4: Simplify right side
    647,828.16x = 323,102,504,703.73
  5. Step 5: Solve for x
    x = 323,102,504,703.73/647,828.16
  6. Step 6: Final answer
    x = 498,747.24

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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.