Home / 819,983.08-1,131,599.46-480,465.64

Finding the Fourth Proportional to 819,983.08, 1,131,599.46 and 480,465.64

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Solution

The fourth proportional to 819,983.08, 1,131,599.46 and 480,465.64 is: 663,055.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,983.08 : 1,131,599.46 = 480,465.64 : x
  2. Step 2: Convert to fraction form
    819,983.08/1,131,599.46 = 480,465.64/x
  3. Step 3: Cross multiply
    819,983.08x = 1,131,599.46 × 480,465.64
  4. Step 4: Simplify right side
    819,983.08x = 543,694,658,772.55
  5. Step 5: Solve for x
    x = 543,694,658,772.55/819,983.08
  6. Step 6: Final answer
    x = 663,055.95

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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.