Home / 893,836.80-1,340,755.20-294,890.40

Finding the Fourth Proportional to 893,836.80, 1,340,755.20 and 294,890.40

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Solution

The fourth proportional to 893,836.80, 1,340,755.20 and 294,890.40 is: 442,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,836.80 : 1,340,755.20 = 294,890.40 : x
  2. Step 2: Convert to fraction form
    893,836.80/1,340,755.20 = 294,890.40/x
  3. Step 3: Cross multiply
    893,836.80x = 1,340,755.20 × 294,890.40
  4. Step 4: Simplify right side
    893,836.80x = 395,375,837,230.08
  5. Step 5: Solve for x
    x = 395,375,837,230.08/893,836.80
  6. Step 6: Final answer
    x = 442,335.60

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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.