Home / 439,819.38-606,948.21-238,611.06

Finding the Fourth Proportional to 439,819.38, 606,948.21 and 238,611.06

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Solution

The fourth proportional to 439,819.38, 606,948.21 and 238,611.06 is: 329,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,819.38 : 606,948.21 = 238,611.06 : x
  2. Step 2: Convert to fraction form
    439,819.38/606,948.21 = 238,611.06/x
  3. Step 3: Cross multiply
    439,819.38x = 606,948.21 × 238,611.06
  4. Step 4: Simplify right side
    439,819.38x = 144,824,555,753.20
  5. Step 5: Solve for x
    x = 144,824,555,753.20/439,819.38
  6. Step 6: Final answer
    x = 329,281.89

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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.