Home / 819,696.14-1,131,178.47-457,120.41

Finding the Fourth Proportional to 819,696.14, 1,131,178.47 and 457,120.41

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Solution

The fourth proportional to 819,696.14, 1,131,178.47 and 457,120.41 is: 630,824.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,696.14 : 1,131,178.47 = 457,120.41 : x
  2. Step 2: Convert to fraction form
    819,696.14/1,131,178.47 = 457,120.41/x
  3. Step 3: Cross multiply
    819,696.14x = 1,131,178.47 × 457,120.41
  4. Step 4: Simplify right side
    819,696.14x = 517,084,765,989.57
  5. Step 5: Solve for x
    x = 517,084,765,989.57/819,696.14
  6. Step 6: Final answer
    x = 630,824.94

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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.