Home / 644,514.17-889,399.37-358,051.73

Finding the Fourth Proportional to 644,514.17, 889,399.37 and 358,051.73

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Solution

The fourth proportional to 644,514.17, 889,399.37 and 358,051.73 is: 494,094.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,514.17 : 889,399.37 = 358,051.73 : x
  2. Step 2: Convert to fraction form
    644,514.17/889,399.37 = 358,051.73/x
  3. Step 3: Cross multiply
    644,514.17x = 889,399.37 × 358,051.73
  4. Step 4: Simplify right side
    644,514.17x = 318,450,979,537.54
  5. Step 5: Solve for x
    x = 318,450,979,537.54/644,514.17
  6. Step 6: Final answer
    x = 494,094.62

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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.