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Finding the Fourth Proportional to 425,388.13, 587,047.97 and 234,413.84

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Solution

The fourth proportional to 425,388.13, 587,047.97 and 234,413.84 is: 323,497.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,388.13 : 587,047.97 = 234,413.84 : x
  2. Step 2: Convert to fraction form
    425,388.13/587,047.97 = 234,413.84/x
  3. Step 3: Cross multiply
    425,388.13x = 587,047.97 × 234,413.84
  4. Step 4: Simplify right side
    425,388.13x = 137,612,168,911.91
  5. Step 5: Solve for x
    x = 137,612,168,911.91/425,388.13
  6. Step 6: Final answer
    x = 323,497.91

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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.