Home / 923,690.60-1,385,190.30-324,420.20

Finding the Fourth Proportional to 923,690.60, 1,385,190.30 and 324,420.20

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Solution

The fourth proportional to 923,690.60, 1,385,190.30 and 324,420.20 is: 486,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,690.60 : 1,385,190.30 = 324,420.20 : x
  2. Step 2: Convert to fraction form
    923,690.60/1,385,190.30 = 324,420.20/x
  3. Step 3: Cross multiply
    923,690.60x = 1,385,190.30 × 324,420.20
  4. Step 4: Simplify right side
    923,690.60x = 449,383,714,164.06
  5. Step 5: Solve for x
    x = 449,383,714,164.06/923,690.60
  6. Step 6: Final answer
    x = 486,508.92

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Double scale
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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.