Home / 654,252.89-981,378.10-205,008.17

Finding the Fourth Proportional to 654,252.89, 981,378.10 and 205,008.17

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Solution

The fourth proportional to 654,252.89, 981,378.10 and 205,008.17 is: 307,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,252.89 : 981,378.10 = 205,008.17 : x
  2. Step 2: Convert to fraction form
    654,252.89/981,378.10 = 205,008.17/x
  3. Step 3: Cross multiply
    654,252.89x = 981,378.10 × 205,008.17
  4. Step 4: Simplify right side
    654,252.89x = 201,190,528,359.08
  5. Step 5: Solve for x
    x = 201,190,528,359.08/654,252.89
  6. Step 6: Final answer
    x = 307,511.87

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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.