Home / 817,786.41-1,128,582.44-455,233.25

Finding the Fourth Proportional to 817,786.41, 1,128,582.44 and 455,233.25

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Solution

The fourth proportional to 817,786.41, 1,128,582.44 and 455,233.25 is: 628,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,786.41 : 1,128,582.44 = 455,233.25 : x
  2. Step 2: Convert to fraction form
    817,786.41/1,128,582.44 = 455,233.25/x
  3. Step 3: Cross multiply
    817,786.41x = 1,128,582.44 × 455,233.25
  4. Step 4: Simplify right side
    817,786.41x = 513,768,244,135.05
  5. Step 5: Solve for x
    x = 513,768,244,135.05/817,786.41
  6. Step 6: Final answer
    x = 628,242.58

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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.