Home / 639,840.86-959,023.08-240,226.76

Finding the Fourth Proportional to 639,840.86, 959,023.08 and 240,226.76

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Solution

The fourth proportional to 639,840.86, 959,023.08 and 240,226.76 is: 360,062.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,840.86 : 959,023.08 = 240,226.76 : x
  2. Step 2: Convert to fraction form
    639,840.86/959,023.08 = 240,226.76/x
  3. Step 3: Cross multiply
    639,840.86x = 959,023.08 × 240,226.76
  4. Step 4: Simplify right side
    639,840.86x = 230,383,007,273.62
  5. Step 5: Solve for x
    x = 230,383,007,273.62/639,840.86
  6. Step 6: Final answer
    x = 360,062.98

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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.