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Finding the Fourth Proportional to 893,144.40, 1,339,716.60 and 655,198.80

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Solution

The fourth proportional to 893,144.40, 1,339,716.60 and 655,198.80 is: 982,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,144.40 : 1,339,716.60 = 655,198.80 : x
  2. Step 2: Convert to fraction form
    893,144.40/1,339,716.60 = 655,198.80/x
  3. Step 3: Cross multiply
    893,144.40x = 1,339,716.60 × 655,198.80
  4. Step 4: Simplify right side
    893,144.40x = 877,780,708,660.08
  5. Step 5: Solve for x
    x = 877,780,708,660.08/893,144.40
  6. Step 6: Final answer
    x = 982,798.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.