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Finding the Fourth Proportional to 279,434.10, 419,151.15 and 222,353.40

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Solution

The fourth proportional to 279,434.10, 419,151.15 and 222,353.40 is: 333,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,434.10 : 419,151.15 = 222,353.40 : x
  2. Step 2: Convert to fraction form
    279,434.10/419,151.15 = 222,353.40/x
  3. Step 3: Cross multiply
    279,434.10x = 419,151.15 × 222,353.40
  4. Step 4: Simplify right side
    279,434.10x = 93,199,683,316.41
  5. Step 5: Solve for x
    x = 93,199,683,316.41/279,434.10
  6. Step 6: Final answer
    x = 333,530.10

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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.