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Finding the Fourth Proportional to 309,383.94, 464,225.22 and 169,138.92

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Solution

The fourth proportional to 309,383.94, 464,225.22 and 169,138.92 is: 253,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,383.94 : 464,225.22 = 169,138.92 : x
  2. Step 2: Convert to fraction form
    309,383.94/464,225.22 = 169,138.92/x
  3. Step 3: Cross multiply
    309,383.94x = 464,225.22 × 169,138.92
  4. Step 4: Simplify right side
    309,383.94x = 78,518,552,347.56
  5. Step 5: Solve for x
    x = 78,518,552,347.56/309,383.94
  6. Step 6: Final answer
    x = 253,790.01

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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.