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Finding the Fourth Proportional to 338,858.62, 467,612.95 and 187,969.66

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Solution

The fourth proportional to 338,858.62, 467,612.95 and 187,969.66 is: 259,391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,858.62 : 467,612.95 = 187,969.66 : x
  2. Step 2: Convert to fraction form
    338,858.62/467,612.95 = 187,969.66/x
  3. Step 3: Cross multiply
    338,858.62x = 467,612.95 × 187,969.66
  4. Step 4: Simplify right side
    338,858.62x = 87,897,047,223.10
  5. Step 5: Solve for x
    x = 87,897,047,223.10/338,858.62
  6. Step 6: Final answer
    x = 259,391.50

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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.