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Finding the Fourth Proportional to 341,638.98, 512,405.90 and 113,938.60

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Solution

The fourth proportional to 341,638.98, 512,405.90 and 113,938.60 is: 170,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,638.98 : 512,405.90 = 113,938.60 : x
  2. Step 2: Convert to fraction form
    341,638.98/512,405.90 = 113,938.60/x
  3. Step 3: Cross multiply
    341,638.98x = 512,405.90 × 113,938.60
  4. Step 4: Simplify right side
    341,638.98x = 58,382,809,027.03
  5. Step 5: Solve for x
    x = 58,382,809,027.03/341,638.98
  6. Step 6: Final answer
    x = 170,890.36

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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.