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Finding the Fourth Proportional to 353,644.57, 530,272.99 and 140,196.25

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Solution

The fourth proportional to 353,644.57, 530,272.99 and 140,196.25 is: 210,217.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,644.57 : 530,272.99 = 140,196.25 : x
  2. Step 2: Convert to fraction form
    353,644.57/530,272.99 = 140,196.25/x
  3. Step 3: Cross multiply
    353,644.57x = 530,272.99 × 140,196.25
  4. Step 4: Simplify right side
    353,644.57x = 74,342,284,674.29
  5. Step 5: Solve for x
    x = 74,342,284,674.29/353,644.57
  6. Step 6: Final answer
    x = 210,217.52

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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.