Home / 440,185.60-658,528.80-381,671.20

Finding the Fourth Proportional to 440,185.60, 658,528.80 and 381,671.20

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Solution

The fourth proportional to 440,185.60, 658,528.80 and 381,671.20 is: 570,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,185.60 : 658,528.80 = 381,671.20 : x
  2. Step 2: Convert to fraction form
    440,185.60/658,528.80 = 381,671.20/x
  3. Step 3: Cross multiply
    440,185.60x = 658,528.80 × 381,671.20
  4. Step 4: Simplify right side
    440,185.60x = 251,341,477,330.56
  5. Step 5: Solve for x
    x = 251,341,477,330.56/440,185.60
  6. Step 6: Final answer
    x = 570,989.78

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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.