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Finding the Fourth Proportional to 626,999.60, 940,499.40 and 206,289.20

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Solution

The fourth proportional to 626,999.60, 940,499.40 and 206,289.20 is: 309,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,999.60 : 940,499.40 = 206,289.20 : x
  2. Step 2: Convert to fraction form
    626,999.60/940,499.40 = 206,289.20/x
  3. Step 3: Cross multiply
    626,999.60x = 940,499.40 × 206,289.20
  4. Step 4: Simplify right side
    626,999.60x = 194,014,868,826.48
  5. Step 5: Solve for x
    x = 194,014,868,826.48/626,999.60
  6. Step 6: Final answer
    x = 309,433.80

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Similar ratio
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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.