Home / 654,411.64-981,588.90-205,122.26

Finding the Fourth Proportional to 654,411.64, 981,588.90 and 205,122.26

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Solution

The fourth proportional to 654,411.64, 981,588.90 and 205,122.26 is: 307,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,411.64 : 981,588.90 = 205,122.26 : x
  2. Step 2: Convert to fraction form
    654,411.64/981,588.90 = 205,122.26/x
  3. Step 3: Cross multiply
    654,411.64x = 981,588.90 × 205,122.26
  4. Step 4: Simplify right side
    654,411.64x = 201,345,733,558.91
  5. Step 5: Solve for x
    x = 201,345,733,558.91/654,411.64
  6. Step 6: Final answer
    x = 307,674.44

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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.