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Finding the Fourth Proportional to 410,999.70, 616,499.55 and 115,473.30

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Solution

The fourth proportional to 410,999.70, 616,499.55 and 115,473.30 is: 173,209.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,999.70 : 616,499.55 = 115,473.30 : x
  2. Step 2: Convert to fraction form
    410,999.70/616,499.55 = 115,473.30/x
  3. Step 3: Cross multiply
    410,999.70x = 616,499.55 × 115,473.30
  4. Step 4: Simplify right side
    410,999.70x = 71,189,237,487.02
  5. Step 5: Solve for x
    x = 71,189,237,487.02/410,999.70
  6. Step 6: Final answer
    x = 173,209.95

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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.