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Finding the Fourth Proportional to 338,838.54, 467,779.30 and 261,713.72

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Solution

The fourth proportional to 338,838.54, 467,779.30 and 261,713.72 is: 361,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,838.54 : 467,779.30 = 261,713.72 : x
  2. Step 2: Convert to fraction form
    338,838.54/467,779.30 = 261,713.72/x
  3. Step 3: Cross multiply
    338,838.54x = 467,779.30 × 261,713.72
  4. Step 4: Simplify right side
    338,838.54x = 122,424,261,257.16
  5. Step 5: Solve for x
    x = 122,424,261,257.16/338,838.54
  6. Step 6: Final answer
    x = 361,305.60

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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.