Home / 905,140.70-1,248,955.45-523,093.76

Finding the Fourth Proportional to 905,140.70, 1,248,955.45 and 523,093.76

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Solution

The fourth proportional to 905,140.70, 1,248,955.45 and 523,093.76 is: 721,789.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,140.70 : 1,248,955.45 = 523,093.76 : x
  2. Step 2: Convert to fraction form
    905,140.70/1,248,955.45 = 523,093.76/x
  3. Step 3: Cross multiply
    905,140.70x = 1,248,955.45 × 523,093.76
  4. Step 4: Simplify right side
    905,140.70x = 653,320,794,860.48
  5. Step 5: Solve for x
    x = 653,320,794,860.48/905,140.70
  6. Step 6: Final answer
    x = 721,789.22

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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.