Home / 901,163.20-1,243,586.64-493,255.12

Finding the Fourth Proportional to 901,163.20, 1,243,586.64 and 493,255.12

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Solution

The fourth proportional to 901,163.20, 1,243,586.64 and 493,255.12 is: 680,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,163.20 : 1,243,586.64 = 493,255.12 : x
  2. Step 2: Convert to fraction form
    901,163.20/1,243,586.64 = 493,255.12/x
  3. Step 3: Cross multiply
    901,163.20x = 1,243,586.64 × 493,255.12
  4. Step 4: Simplify right side
    901,163.20x = 613,405,477,343.60
  5. Step 5: Solve for x
    x = 613,405,477,343.60/901,163.20
  6. Step 6: Final answer
    x = 680,681.90

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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.