Home / 805,129.08-1,111,055.58-442,553.64

Finding the Fourth Proportional to 805,129.08, 1,111,055.58 and 442,553.64

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Solution

The fourth proportional to 805,129.08, 1,111,055.58 and 442,553.64 is: 610,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,129.08 : 1,111,055.58 = 442,553.64 : x
  2. Step 2: Convert to fraction form
    805,129.08/1,111,055.58 = 442,553.64/x
  3. Step 3: Cross multiply
    805,129.08x = 1,111,055.58 × 442,553.64
  4. Step 4: Simplify right side
    805,129.08x = 491,701,691,171.31
  5. Step 5: Solve for x
    x = 491,701,691,171.31/805,129.08
  6. Step 6: Final answer
    x = 610,711.63

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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.