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Finding the Fourth Proportional to 338,458.50, 467,072.73 and 187,555.50

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Solution

The fourth proportional to 338,458.50, 467,072.73 and 187,555.50 is: 258,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,458.50 : 467,072.73 = 187,555.50 : x
  2. Step 2: Convert to fraction form
    338,458.50/467,072.73 = 187,555.50/x
  3. Step 3: Cross multiply
    338,458.50x = 467,072.73 × 187,555.50
  4. Step 4: Simplify right side
    338,458.50x = 87,602,059,411.52
  5. Step 5: Solve for x
    x = 87,602,059,411.52/338,458.50
  6. Step 6: Final answer
    x = 258,826.59

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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.