Home / 811,987.54-1,120,512.18-444,473.12

Finding the Fourth Proportional to 811,987.54, 1,120,512.18 and 444,473.12

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Solution

The fourth proportional to 811,987.54, 1,120,512.18 and 444,473.12 is: 613,356.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,987.54 : 1,120,512.18 = 444,473.12 : x
  2. Step 2: Convert to fraction form
    811,987.54/1,120,512.18 = 444,473.12/x
  3. Step 3: Cross multiply
    811,987.54x = 1,120,512.18 × 444,473.12
  4. Step 4: Simplify right side
    811,987.54x = 498,037,549,110.66
  5. Step 5: Solve for x
    x = 498,037,549,110.66/811,987.54
  6. Step 6: Final answer
    x = 613,356.15

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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.