Home / 805,189.15-1,111,174.83-442,628.29

Finding the Fourth Proportional to 805,189.15, 1,111,174.83 and 442,628.29

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Solution

The fourth proportional to 805,189.15, 1,111,174.83 and 442,628.29 is: 610,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,189.15 : 1,111,174.83 = 442,628.29 : x
  2. Step 2: Convert to fraction form
    805,189.15/1,111,174.83 = 442,628.29/x
  3. Step 3: Cross multiply
    805,189.15x = 1,111,174.83 × 442,628.29
  4. Step 4: Simplify right side
    805,189.15x = 491,837,414,893.94
  5. Step 5: Solve for x
    x = 491,837,414,893.94/805,189.15
  6. Step 6: Final answer
    x = 610,834.63

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1.5x scale

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.