Home / 981,206.53-1,354,177.20-545,667.28

Finding the Fourth Proportional to 981,206.53, 1,354,177.20 and 545,667.28

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Solution

The fourth proportional to 981,206.53, 1,354,177.20 and 545,667.28 is: 753,083.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,206.53 : 1,354,177.20 = 545,667.28 : x
  2. Step 2: Convert to fraction form
    981,206.53/1,354,177.20 = 545,667.28/x
  3. Step 3: Cross multiply
    981,206.53x = 1,354,177.20 × 545,667.28
  4. Step 4: Simplify right side
    981,206.53x = 738,930,189,362.02
  5. Step 5: Solve for x
    x = 738,930,189,362.02/981,206.53
  6. Step 6: Final answer
    x = 753,083.24

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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.