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Finding the Fourth Proportional to 319,821, 441,367.20 and 183,899.04

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Solution

The fourth proportional to 319,821, 441,367.20 and 183,899.04 is: 253,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,821 : 441,367.20 = 183,899.04 : x
  2. Step 2: Convert to fraction form
    319,821/441,367.20 = 183,899.04/x
  3. Step 3: Cross multiply
    319,821x = 441,367.20 × 183,899.04
  4. Step 4: Simplify right side
    319,821x = 81,167,004,367.49
  5. Step 5: Solve for x
    x = 81,167,004,367.49/319,821
  6. Step 6: Final answer
    x = 253,788.85

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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.