Home / 641,736.57-885,689.19-369,752.21

Finding the Fourth Proportional to 641,736.57, 885,689.19 and 369,752.21

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Solution

The fourth proportional to 641,736.57, 885,689.19 and 369,752.21 is: 510,311.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,736.57 : 885,689.19 = 369,752.21 : x
  2. Step 2: Convert to fraction form
    641,736.57/885,689.19 = 369,752.21/x
  3. Step 3: Cross multiply
    641,736.57x = 885,689.19 × 369,752.21
  4. Step 4: Simplify right side
    641,736.57x = 327,485,530,947.16
  5. Step 5: Solve for x
    x = 327,485,530,947.16/641,736.57
  6. Step 6: Final answer
    x = 510,311.47

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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.