Home / 688,983.49-1,033,408.41-209,215.44

Finding the Fourth Proportional to 688,983.49, 1,033,408.41 and 209,215.44

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Solution

The fourth proportional to 688,983.49, 1,033,408.41 and 209,215.44 is: 313,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,983.49 : 1,033,408.41 = 209,215.44 : x
  2. Step 2: Convert to fraction form
    688,983.49/1,033,408.41 = 209,215.44/x
  3. Step 3: Cross multiply
    688,983.49x = 1,033,408.41 × 209,215.44
  4. Step 4: Simplify right side
    688,983.49x = 216,204,999,949.82
  5. Step 5: Solve for x
    x = 216,204,999,949.82/688,983.49
  6. Step 6: Final answer
    x = 313,802.88

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1.5x scale

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.