Home / 351,579.78-485,180.55-190,436.22

Finding the Fourth Proportional to 351,579.78, 485,180.55 and 190,436.22

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Solution

The fourth proportional to 351,579.78, 485,180.55 and 190,436.22 is: 262,802.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,579.78 : 485,180.55 = 190,436.22 : x
  2. Step 2: Convert to fraction form
    351,579.78/485,180.55 = 190,436.22/x
  3. Step 3: Cross multiply
    351,579.78x = 485,180.55 × 190,436.22
  4. Step 4: Simplify right side
    351,579.78x = 92,395,949,959.52
  5. Step 5: Solve for x
    x = 92,395,949,959.52/351,579.78
  6. Step 6: Final answer
    x = 262,802.23

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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.