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Finding the Fourth Proportional to 298,266.30, 447,399.45 and 98,593.20

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Solution

The fourth proportional to 298,266.30, 447,399.45 and 98,593.20 is: 147,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,266.30 : 447,399.45 = 98,593.20 : x
  2. Step 2: Convert to fraction form
    298,266.30/447,399.45 = 98,593.20/x
  3. Step 3: Cross multiply
    298,266.30x = 447,399.45 × 98,593.20
  4. Step 4: Simplify right side
    298,266.30x = 44,110,543,453.74
  5. Step 5: Solve for x
    x = 44,110,543,453.74/298,266.30
  6. Step 6: Final answer
    x = 147,889.80

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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.