Home / 439,938.69-607,115.39-238,734.69

Finding the Fourth Proportional to 439,938.69, 607,115.39 and 238,734.69

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Solution

The fourth proportional to 439,938.69, 607,115.39 and 238,734.69 is: 329,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,938.69 : 607,115.39 = 238,734.69 : x
  2. Step 2: Convert to fraction form
    439,938.69/607,115.39 = 238,734.69/x
  3. Step 3: Cross multiply
    439,938.69x = 607,115.39 × 238,734.69
  4. Step 4: Simplify right side
    439,938.69x = 144,939,503,232.21
  5. Step 5: Solve for x
    x = 144,939,503,232.21/439,938.69
  6. Step 6: Final answer
    x = 329,453.87

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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.