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Finding the Fourth Proportional to 339,874.90, 469,039.40 and 186,924.92

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Solution

The fourth proportional to 339,874.90, 469,039.40 and 186,924.92 is: 257,963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,874.90 : 469,039.40 = 186,924.92 : x
  2. Step 2: Convert to fraction form
    339,874.90/469,039.40 = 186,924.92/x
  3. Step 3: Cross multiply
    339,874.90x = 469,039.40 × 186,924.92
  4. Step 4: Simplify right side
    339,874.90x = 87,675,152,321.85
  5. Step 5: Solve for x
    x = 87,675,152,321.85/339,874.90
  6. Step 6: Final answer
    x = 257,963.01

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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.