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Finding the Fourth Proportional to 324,926.64, 447,401.88 and 284,413.68

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Solution

The fourth proportional to 324,926.64, 447,401.88 and 284,413.68 is: 391,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,926.64 : 447,401.88 = 284,413.68 : x
  2. Step 2: Convert to fraction form
    324,926.64/447,401.88 = 284,413.68/x
  3. Step 3: Cross multiply
    324,926.64x = 447,401.88 × 284,413.68
  4. Step 4: Simplify right side
    324,926.64x = 127,247,215,129.72
  5. Step 5: Solve for x
    x = 127,247,215,129.72/324,926.64
  6. Step 6: Final answer
    x = 391,618.29

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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.