Home / 744,724.09-1,027,719.20-405,194.77

Finding the Fourth Proportional to 744,724.09, 1,027,719.20 and 405,194.77

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Solution

The fourth proportional to 744,724.09, 1,027,719.20 and 405,194.77 is: 559,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,724.09 : 1,027,719.20 = 405,194.77 : x
  2. Step 2: Convert to fraction form
    744,724.09/1,027,719.20 = 405,194.77/x
  3. Step 3: Cross multiply
    744,724.09x = 1,027,719.20 × 405,194.77
  4. Step 4: Simplify right side
    744,724.09x = 416,426,437,704.01
  5. Step 5: Solve for x
    x = 416,426,437,704.01/744,724.09
  6. Step 6: Final answer
    x = 559,168.75

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Double scale
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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.