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Finding the Fourth Proportional to 440,438.36, 607,805.52 and 239,234.36

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Solution

The fourth proportional to 440,438.36, 607,805.52 and 239,234.36 is: 330,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,438.36 : 607,805.52 = 239,234.36 : x
  2. Step 2: Convert to fraction form
    440,438.36/607,805.52 = 239,234.36/x
  3. Step 3: Cross multiply
    440,438.36x = 607,805.52 × 239,234.36
  4. Step 4: Simplify right side
    440,438.36x = 145,407,964,581.67
  5. Step 5: Solve for x
    x = 145,407,964,581.67/440,438.36
  6. Step 6: Final answer
    x = 330,143.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.