Home / 812,796.60-1,121,659.40-450,243.94

Finding the Fourth Proportional to 812,796.60, 1,121,659.40 and 450,243.94

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Solution

The fourth proportional to 812,796.60, 1,121,659.40 and 450,243.94 is: 621,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,796.60 : 1,121,659.40 = 450,243.94 : x
  2. Step 2: Convert to fraction form
    812,796.60/1,121,659.40 = 450,243.94/x
  3. Step 3: Cross multiply
    812,796.60x = 1,121,659.40 × 450,243.94
  4. Step 4: Simplify right side
    812,796.60x = 505,020,347,594.04
  5. Step 5: Solve for x
    x = 505,020,347,594.04/812,796.60
  6. Step 6: Final answer
    x = 621,336.69

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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.