Home / 817,649.13-1,128,392.97-455,096.22

Finding the Fourth Proportional to 817,649.13, 1,128,392.97 and 455,096.22

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Solution

The fourth proportional to 817,649.13, 1,128,392.97 and 455,096.22 is: 628,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,649.13 : 1,128,392.97 = 455,096.22 : x
  2. Step 2: Convert to fraction form
    817,649.13/1,128,392.97 = 455,096.22/x
  3. Step 3: Cross multiply
    817,649.13x = 1,128,392.97 × 455,096.22
  4. Step 4: Simplify right side
    817,649.13x = 513,527,375,321.57
  5. Step 5: Solve for x
    x = 513,527,375,321.57/817,649.13
  6. Step 6: Final answer
    x = 628,053.47

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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.