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Finding the Fourth Proportional to 313,245.30, 432,115.22 and 192,413.82

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Solution

The fourth proportional to 313,245.30, 432,115.22 and 192,413.82 is: 265,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,245.30 : 432,115.22 = 192,413.82 : x
  2. Step 2: Convert to fraction form
    313,245.30/432,115.22 = 192,413.82/x
  3. Step 3: Cross multiply
    313,245.30x = 432,115.22 × 192,413.82
  4. Step 4: Simplify right side
    313,245.30x = 83,144,940,160.34
  5. Step 5: Solve for x
    x = 83,144,940,160.34/313,245.30
  6. Step 6: Final answer
    x = 265,430.77

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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.