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Finding the Fourth Proportional to 328,203.90, 492,393.37 and 117,843.66

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Solution

The fourth proportional to 328,203.90, 492,393.37 and 117,843.66 is: 176,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,203.90 : 492,393.37 = 117,843.66 : x
  2. Step 2: Convert to fraction form
    328,203.90/492,393.37 = 117,843.66/x
  3. Step 3: Cross multiply
    328,203.90x = 492,393.37 × 117,843.66
  4. Step 4: Simplify right side
    328,203.90x = 58,025,436,880.53
  5. Step 5: Solve for x
    x = 58,025,436,880.53/328,203.90
  6. Step 6: Final answer
    x = 176,796.91

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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.