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Finding the Fourth Proportional to 279,024.40, 419,573.40 and 233,405.20

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Solution

The fourth proportional to 279,024.40, 419,573.40 and 233,405.20 is: 350,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,024.40 : 419,573.40 = 233,405.20 : x
  2. Step 2: Convert to fraction form
    279,024.40/419,573.40 = 233,405.20/x
  3. Step 3: Cross multiply
    279,024.40x = 419,573.40 × 233,405.20
  4. Step 4: Simplify right side
    279,024.40x = 97,930,613,341.68
  5. Step 5: Solve for x
    x = 97,930,613,341.68/279,024.40
  6. Step 6: Final answer
    x = 350,975.09

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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.