Home / 450,511.47-621,644.42-269,185.07

Finding the Fourth Proportional to 450,511.47, 621,644.42 and 269,185.07

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Solution

The fourth proportional to 450,511.47, 621,644.42 and 269,185.07 is: 371,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,511.47 : 621,644.42 = 269,185.07 : x
  2. Step 2: Convert to fraction form
    450,511.47/621,644.42 = 269,185.07/x
  3. Step 3: Cross multiply
    450,511.47x = 621,644.42 × 269,185.07
  4. Step 4: Simplify right side
    450,511.47x = 167,337,398,939.88
  5. Step 5: Solve for x
    x = 167,337,398,939.88/450,511.47
  6. Step 6: Final answer
    x = 371,438.71

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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.