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Finding the Fourth Proportional to 486,016.20, 729,024.30 and 444,025.80

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Solution

The fourth proportional to 486,016.20, 729,024.30 and 444,025.80 is: 666,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,016.20 : 729,024.30 = 444,025.80 : x
  2. Step 2: Convert to fraction form
    486,016.20/729,024.30 = 444,025.80/x
  3. Step 3: Cross multiply
    486,016.20x = 729,024.30 × 444,025.80
  4. Step 4: Simplify right side
    486,016.20x = 323,705,598,026.94
  5. Step 5: Solve for x
    x = 323,705,598,026.94/486,016.20
  6. Step 6: Final answer
    x = 666,038.70

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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.