Home / 439,960.38-607,145.34-238,756.38

Finding the Fourth Proportional to 439,960.38, 607,145.34 and 238,756.38

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Solution

The fourth proportional to 439,960.38, 607,145.34 and 238,756.38 is: 329,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,960.38 : 607,145.34 = 238,756.38 : x
  2. Step 2: Convert to fraction form
    439,960.38/607,145.34 = 238,756.38/x
  3. Step 3: Cross multiply
    439,960.38x = 607,145.34 × 238,756.38
  4. Step 4: Simplify right side
    439,960.38x = 144,959,823,512.27
  5. Step 5: Solve for x
    x = 144,959,823,512.27/439,960.38
  6. Step 6: Final answer
    x = 329,483.81

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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.