Home / 813,237.60-1,219,856.40-222,261.60

Finding the Fourth Proportional to 813,237.60, 1,219,856.40 and 222,261.60

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Solution

The fourth proportional to 813,237.60, 1,219,856.40 and 222,261.60 is: 333,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,237.60 : 1,219,856.40 = 222,261.60 : x
  2. Step 2: Convert to fraction form
    813,237.60/1,219,856.40 = 222,261.60/x
  3. Step 3: Cross multiply
    813,237.60x = 1,219,856.40 × 222,261.60
  4. Step 4: Simplify right side
    813,237.60x = 271,127,235,234.24
  5. Step 5: Solve for x
    x = 271,127,235,234.24/813,237.60
  6. Step 6: Final answer
    x = 333,392.40

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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.