Home / 910,481.72-1,256,213.21-523,277.01

Finding the Fourth Proportional to 910,481.72, 1,256,213.21 and 523,277.01

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Solution

The fourth proportional to 910,481.72, 1,256,213.21 and 523,277.01 is: 721,977.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,481.72 : 1,256,213.21 = 523,277.01 : x
  2. Step 2: Convert to fraction form
    910,481.72/1,256,213.21 = 523,277.01/x
  3. Step 3: Cross multiply
    910,481.72x = 1,256,213.21 × 523,277.01
  4. Step 4: Simplify right side
    910,481.72x = 657,347,489,834.92
  5. Step 5: Solve for x
    x = 657,347,489,834.92/910,481.72
  6. Step 6: Final answer
    x = 721,977.69

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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.