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Finding the Fourth Proportional to 556,821.08, 768,413.06 and 302,172.27

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Solution

The fourth proportional to 556,821.08, 768,413.06 and 302,172.27 is: 416,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,821.08 : 768,413.06 = 302,172.27 : x
  2. Step 2: Convert to fraction form
    556,821.08/768,413.06 = 302,172.27/x
  3. Step 3: Cross multiply
    556,821.08x = 768,413.06 × 302,172.27
  4. Step 4: Simplify right side
    556,821.08x = 232,193,118,637.85
  5. Step 5: Solve for x
    x = 232,193,118,637.85/556,821.08
  6. Step 6: Final answer
    x = 416,997.72

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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.