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Finding the Fourth Proportional to 338,745.95, 508,398.48 and 170,314.15

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Solution

The fourth proportional to 338,745.95, 508,398.48 and 170,314.15 is: 255,611.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,745.95 : 508,398.48 = 170,314.15 : x
  2. Step 2: Convert to fraction form
    338,745.95/508,398.48 = 170,314.15/x
  3. Step 3: Cross multiply
    338,745.95x = 508,398.48 × 170,314.15
  4. Step 4: Simplify right side
    338,745.95x = 86,587,453,711.50
  5. Step 5: Solve for x
    x = 86,587,453,711.50/338,745.95
  6. Step 6: Final answer
    x = 255,611.77

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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.