Home / 831,237.60-1,246,856.40-654,290.40

Finding the Fourth Proportional to 831,237.60, 1,246,856.40 and 654,290.40

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Solution

The fourth proportional to 831,237.60, 1,246,856.40 and 654,290.40 is: 981,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,237.60 : 1,246,856.40 = 654,290.40 : x
  2. Step 2: Convert to fraction form
    831,237.60/1,246,856.40 = 654,290.40/x
  3. Step 3: Cross multiply
    831,237.60x = 1,246,856.40 × 654,290.40
  4. Step 4: Simplify right side
    831,237.60x = 815,806,172,698.56
  5. Step 5: Solve for x
    x = 815,806,172,698.56/831,237.60
  6. Step 6: Final answer
    x = 981,435.60

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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.