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Finding the Fourth Proportional to 439,209.64, 606,109.50 and 238,005.64

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Solution

The fourth proportional to 439,209.64, 606,109.50 and 238,005.64 is: 328,447.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,209.64 : 606,109.50 = 238,005.64 : x
  2. Step 2: Convert to fraction form
    439,209.64/606,109.50 = 238,005.64/x
  3. Step 3: Cross multiply
    439,209.64x = 606,109.50 × 238,005.64
  4. Step 4: Simplify right side
    439,209.64x = 144,257,479,457.58
  5. Step 5: Solve for x
    x = 144,257,479,457.58/439,209.64
  6. Step 6: Final answer
    x = 328,447.89

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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.