Home / 453,205.22-679,195.44-172,569.38

Finding the Fourth Proportional to 453,205.22, 679,195.44 and 172,569.38

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Solution

The fourth proportional to 453,205.22, 679,195.44 and 172,569.38 is: 258,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,205.22 : 679,195.44 = 172,569.38 : x
  2. Step 2: Convert to fraction form
    453,205.22/679,195.44 = 172,569.38/x
  3. Step 3: Cross multiply
    453,205.22x = 679,195.44 × 172,569.38
  4. Step 4: Simplify right side
    453,205.22x = 117,208,335,979.63
  5. Step 5: Solve for x
    x = 117,208,335,979.63/453,205.22
  6. Step 6: Final answer
    x = 258,620.89

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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.