Home / 862,818.60-1,294,227.90-442,914.60

Finding the Fourth Proportional to 862,818.60, 1,294,227.90 and 442,914.60

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Solution

The fourth proportional to 862,818.60, 1,294,227.90 and 442,914.60 is: 664,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,818.60 : 1,294,227.90 = 442,914.60 : x
  2. Step 2: Convert to fraction form
    862,818.60/1,294,227.90 = 442,914.60/x
  3. Step 3: Cross multiply
    862,818.60x = 1,294,227.90 × 442,914.60
  4. Step 4: Simplify right side
    862,818.60x = 573,232,432,637.34
  5. Step 5: Solve for x
    x = 573,232,432,637.34/862,818.60
  6. Step 6: Final answer
    x = 664,371.90

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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.