Home / 881,212.75-1,216,081.02-478,804.75

Finding the Fourth Proportional to 881,212.75, 1,216,081.02 and 478,804.75

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Solution

The fourth proportional to 881,212.75, 1,216,081.02 and 478,804.75 is: 660,754.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,212.75 : 1,216,081.02 = 478,804.75 : x
  2. Step 2: Convert to fraction form
    881,212.75/1,216,081.02 = 478,804.75/x
  3. Step 3: Cross multiply
    881,212.75x = 1,216,081.02 × 478,804.75
  4. Step 4: Simplify right side
    881,212.75x = 582,265,368,760.85
  5. Step 5: Solve for x
    x = 582,265,368,760.85/881,212.75
  6. Step 6: Final answer
    x = 660,754.59

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Double scale
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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.