Home / 654,114.83-981,172.26-204,870.86

Finding the Fourth Proportional to 654,114.83, 981,172.26 and 204,870.86

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Solution

The fourth proportional to 654,114.83, 981,172.26 and 204,870.86 is: 307,306.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,114.83 : 981,172.26 = 204,870.86 : x
  2. Step 2: Convert to fraction form
    654,114.83/981,172.26 = 204,870.86/x
  3. Step 3: Cross multiply
    654,114.83x = 981,172.26 × 204,870.86
  4. Step 4: Simplify right side
    654,114.83x = 201,013,599,808.48
  5. Step 5: Solve for x
    x = 201,013,599,808.48/654,114.83
  6. Step 6: Final answer
    x = 307,306.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.