Home / 827,998.20-1,142,758.53-465,451.92

Finding the Fourth Proportional to 827,998.20, 1,142,758.53 and 465,451.92

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Solution

The fourth proportional to 827,998.20, 1,142,758.53 and 465,451.92 is: 642,391.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,998.20 : 1,142,758.53 = 465,451.92 : x
  2. Step 2: Convert to fraction form
    827,998.20/1,142,758.53 = 465,451.92/x
  3. Step 3: Cross multiply
    827,998.20x = 1,142,758.53 × 465,451.92
  4. Step 4: Simplify right side
    827,998.20x = 531,899,151,884.88
  5. Step 5: Solve for x
    x = 531,899,151,884.88/827,998.20
  6. Step 6: Final answer
    x = 642,391.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.