Home / 309,553.15-427,176.69-173,584.11

Finding the Fourth Proportional to 309,553.15, 427,176.69 and 173,584.11

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Solution

The fourth proportional to 309,553.15, 427,176.69 and 173,584.11 is: 239,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,553.15 : 427,176.69 = 173,584.11 : x
  2. Step 2: Convert to fraction form
    309,553.15/427,176.69 = 173,584.11/x
  3. Step 3: Cross multiply
    309,553.15x = 427,176.69 × 173,584.11
  4. Step 4: Simplify right side
    309,553.15x = 74,151,086,497.37
  5. Step 5: Solve for x
    x = 74,151,086,497.37/309,553.15
  6. Step 6: Final answer
    x = 239,542.34

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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.