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Finding the Fourth Proportional to 331,522.65, 457,485.35 and 188,263.77

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Solution

The fourth proportional to 331,522.65, 457,485.35 and 188,263.77 is: 259,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,522.65 : 457,485.35 = 188,263.77 : x
  2. Step 2: Convert to fraction form
    331,522.65/457,485.35 = 188,263.77/x
  3. Step 3: Cross multiply
    331,522.65x = 457,485.35 × 188,263.77
  4. Step 4: Simplify right side
    331,522.65x = 86,127,915,769.45
  5. Step 5: Solve for x
    x = 86,127,915,769.45/331,522.65
  6. Step 6: Final answer
    x = 259,794.97

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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.