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Finding the Fourth Proportional to 624,345.78, 936,413.13 and 174,963.30

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Solution

The fourth proportional to 624,345.78, 936,413.13 and 174,963.30 is: 262,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,345.78 : 936,413.13 = 174,963.30 : x
  2. Step 2: Convert to fraction form
    624,345.78/936,413.13 = 174,963.30/x
  3. Step 3: Cross multiply
    624,345.78x = 936,413.13 × 174,963.30
  4. Step 4: Simplify right side
    624,345.78x = 163,837,931,388.13
  5. Step 5: Solve for x
    x = 163,837,931,388.13/624,345.78
  6. Step 6: Final answer
    x = 262,415.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.