Home / 436,384.31-654,569.90-196,328.69

Finding the Fourth Proportional to 436,384.31, 654,569.90 and 196,328.69

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Solution

The fourth proportional to 436,384.31, 654,569.90 and 196,328.69 is: 294,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,384.31 : 654,569.90 = 196,328.69 : x
  2. Step 2: Convert to fraction form
    436,384.31/654,569.90 = 196,328.69/x
  3. Step 3: Cross multiply
    436,384.31x = 654,569.90 × 196,328.69
  4. Step 4: Simplify right side
    436,384.31x = 128,510,846,725.94
  5. Step 5: Solve for x
    x = 128,510,846,725.94/436,384.31
  6. Step 6: Final answer
    x = 294,490.07

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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.