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Finding the Fourth Proportional to 638,893.35, 957,525.98 and 339,517.35

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Solution

The fourth proportional to 638,893.35, 957,525.98 and 339,517.35 is: 508,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,893.35 : 957,525.98 = 339,517.35 : x
  2. Step 2: Convert to fraction form
    638,893.35/957,525.98 = 339,517.35/x
  3. Step 3: Cross multiply
    638,893.35x = 957,525.98 × 339,517.35
  4. Step 4: Simplify right side
    638,893.35x = 325,096,681,588.17
  5. Step 5: Solve for x
    x = 325,096,681,588.17/638,893.35
  6. Step 6: Final answer
    x = 508,843.43

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1.5x scale

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.