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Finding the Fourth Proportional to 279,025.40, 419,574.90 and 233,406.20

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Solution

The fourth proportional to 279,025.40, 419,574.90 and 233,406.20 is: 350,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,025.40 : 419,574.90 = 233,406.20 : x
  2. Step 2: Convert to fraction form
    279,025.40/419,574.90 = 233,406.20/x
  3. Step 3: Cross multiply
    279,025.40x = 419,574.90 × 233,406.20
  4. Step 4: Simplify right side
    279,025.40x = 97,931,383,024.38
  5. Step 5: Solve for x
    x = 97,931,383,024.38/279,025.40
  6. Step 6: Final answer
    x = 350,976.59

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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.