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Finding the Fourth Proportional to 339,792.30, 468,915.12 and 186,840.36

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Solution

The fourth proportional to 339,792.30, 468,915.12 and 186,840.36 is: 257,840.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,792.30 : 468,915.12 = 186,840.36 : x
  2. Step 2: Convert to fraction form
    339,792.30/468,915.12 = 186,840.36/x
  3. Step 3: Cross multiply
    339,792.30x = 468,915.12 × 186,840.36
  4. Step 4: Simplify right side
    339,792.30x = 87,612,269,830.24
  5. Step 5: Solve for x
    x = 87,612,269,830.24/339,792.30
  6. Step 6: Final answer
    x = 257,840.66

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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.