Home / 827,233.20-1,240,849.80-661,345.20

Finding the Fourth Proportional to 827,233.20, 1,240,849.80 and 661,345.20

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Solution

The fourth proportional to 827,233.20, 1,240,849.80 and 661,345.20 is: 992,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,233.20 : 1,240,849.80 = 661,345.20 : x
  2. Step 2: Convert to fraction form
    827,233.20/1,240,849.80 = 661,345.20/x
  3. Step 3: Cross multiply
    827,233.20x = 1,240,849.80 × 661,345.20
  4. Step 4: Simplify right side
    827,233.20x = 820,630,059,150.96
  5. Step 5: Solve for x
    x = 820,630,059,150.96/827,233.20
  6. Step 6: Final answer
    x = 992,017.80

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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.