Home / 981,205.53-1,354,175.82-545,666.28

Finding the Fourth Proportional to 981,205.53, 1,354,175.82 and 545,666.28

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Solution

The fourth proportional to 981,205.53, 1,354,175.82 and 545,666.28 is: 753,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,205.53 : 1,354,175.82 = 545,666.28 : x
  2. Step 2: Convert to fraction form
    981,205.53/1,354,175.82 = 545,666.28/x
  3. Step 3: Cross multiply
    981,205.53x = 1,354,175.82 × 545,666.28
  4. Step 4: Simplify right side
    981,205.53x = 738,928,082,165.35
  5. Step 5: Solve for x
    x = 738,928,082,165.35/981,205.53
  6. Step 6: Final answer
    x = 753,081.86

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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.