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Finding the Fourth Proportional to 440,632.88, 608,077.22 and 239,428.88

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Solution

The fourth proportional to 440,632.88, 608,077.22 and 239,428.88 is: 330,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,632.88 : 608,077.22 = 239,428.88 : x
  2. Step 2: Convert to fraction form
    440,632.88/608,077.22 = 239,428.88/x
  3. Step 3: Cross multiply
    440,632.88x = 608,077.22 × 239,428.88
  4. Step 4: Simplify right side
    440,632.88x = 145,591,247,738.11
  5. Step 5: Solve for x
    x = 145,591,247,738.11/440,632.88
  6. Step 6: Final answer
    x = 330,413.94

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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.