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Finding the Fourth Proportional to 336,886.20, 505,402.20 and 100,252.80

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Solution

The fourth proportional to 336,886.20, 505,402.20 and 100,252.80 is: 150,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,886.20 : 505,402.20 = 100,252.80 : x
  2. Step 2: Convert to fraction form
    336,886.20/505,402.20 = 100,252.80/x
  3. Step 3: Cross multiply
    336,886.20x = 505,402.20 × 100,252.80
  4. Step 4: Simplify right side
    336,886.20x = 50,667,985,676.16
  5. Step 5: Solve for x
    x = 50,667,985,676.16/336,886.20
  6. Step 6: Final answer
    x = 150,400.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.