Home / 873,928.08-1,206,043.56-491,968.80

Finding the Fourth Proportional to 873,928.08, 1,206,043.56 and 491,968.80

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Solution

The fourth proportional to 873,928.08, 1,206,043.56 and 491,968.80 is: 678,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,928.08 : 1,206,043.56 = 491,968.80 : x
  2. Step 2: Convert to fraction form
    873,928.08/1,206,043.56 = 491,968.80/x
  3. Step 3: Cross multiply
    873,928.08x = 1,206,043.56 × 491,968.80
  4. Step 4: Simplify right side
    873,928.08x = 593,335,802,960.93
  5. Step 5: Solve for x
    x = 593,335,802,960.93/873,928.08
  6. Step 6: Final answer
    x = 678,929.78

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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.