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Finding the Fourth Proportional to 368,704.12, 508,792.33 and 207,553.81

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Solution

The fourth proportional to 368,704.12, 508,792.33 and 207,553.81 is: 286,413.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,704.12 : 508,792.33 = 207,553.81 : x
  2. Step 2: Convert to fraction form
    368,704.12/508,792.33 = 207,553.81/x
  3. Step 3: Cross multiply
    368,704.12x = 508,792.33 × 207,553.81
  4. Step 4: Simplify right side
    368,704.12x = 105,601,786,590.28
  5. Step 5: Solve for x
    x = 105,601,786,590.28/368,704.12
  6. Step 6: Final answer
    x = 286,413.36

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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.