Home / 411,979.20-619,005.60-262,291.20

Finding the Fourth Proportional to 411,979.20, 619,005.60 and 262,291.20

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Solution

The fourth proportional to 411,979.20, 619,005.60 and 262,291.20 is: 394,096.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,979.20 : 619,005.60 = 262,291.20 : x
  2. Step 2: Convert to fraction form
    411,979.20/619,005.60 = 262,291.20/x
  3. Step 3: Cross multiply
    411,979.20x = 619,005.60 × 262,291.20
  4. Step 4: Simplify right side
    411,979.20x = 162,359,721,630.72
  5. Step 5: Solve for x
    x = 162,359,721,630.72/411,979.20
  6. Step 6: Final answer
    x = 394,096.89

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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.