Home / 621,293.36-857,380.44-353,021.36

Finding the Fourth Proportional to 621,293.36, 857,380.44 and 353,021.36

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Solution

The fourth proportional to 621,293.36, 857,380.44 and 353,021.36 is: 487,166.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,293.36 : 857,380.44 = 353,021.36 : x
  2. Step 2: Convert to fraction form
    621,293.36/857,380.44 = 353,021.36/x
  3. Step 3: Cross multiply
    621,293.36x = 857,380.44 × 353,021.36
  4. Step 4: Simplify right side
    621,293.36x = 302,673,608,966.20
  5. Step 5: Solve for x
    x = 302,673,608,966.20/621,293.36
  6. Step 6: Final answer
    x = 487,166.98

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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.