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Finding the Fourth Proportional to 646,656.44, 892,413.58 and 360,176.60

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Solution

The fourth proportional to 646,656.44, 892,413.58 and 360,176.60 is: 497,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,656.44 : 892,413.58 = 360,176.60 : x
  2. Step 2: Convert to fraction form
    646,656.44/892,413.58 = 360,176.60/x
  3. Step 3: Cross multiply
    646,656.44x = 892,413.58 × 360,176.60
  4. Step 4: Simplify right side
    646,656.44x = 321,426,489,038.23
  5. Step 5: Solve for x
    x = 321,426,489,038.23/646,656.44
  6. Step 6: Final answer
    x = 497,059.13

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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.