Home / 440,178.60-658,518.30-381,664.20

Finding the Fourth Proportional to 440,178.60, 658,518.30 and 381,664.20

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Solution

The fourth proportional to 440,178.60, 658,518.30 and 381,664.20 is: 570,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,178.60 : 658,518.30 = 381,664.20 : x
  2. Step 2: Convert to fraction form
    440,178.60/658,518.30 = 381,664.20/x
  3. Step 3: Cross multiply
    440,178.60x = 658,518.30 × 381,664.20
  4. Step 4: Simplify right side
    440,178.60x = 251,332,860,154.86
  5. Step 5: Solve for x
    x = 251,332,860,154.86/440,178.60
  6. Step 6: Final answer
    x = 570,979.28

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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.