Home / 813,654.90-1,122,910.02-451,192.38

Finding the Fourth Proportional to 813,654.90, 1,122,910.02 and 451,192.38

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Solution

The fourth proportional to 813,654.90, 1,122,910.02 and 451,192.38 is: 622,682.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,654.90 : 1,122,910.02 = 451,192.38 : x
  2. Step 2: Convert to fraction form
    813,654.90/1,122,910.02 = 451,192.38/x
  3. Step 3: Cross multiply
    813,654.90x = 1,122,910.02 × 451,192.38
  4. Step 4: Simplify right side
    813,654.90x = 506,648,444,449.65
  5. Step 5: Solve for x
    x = 506,648,444,449.65/813,654.90
  6. Step 6: Final answer
    x = 622,682.23

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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.