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Finding the Fourth Proportional to 615,413.51, 923,532.60 and 216,055.47

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Solution

The fourth proportional to 615,413.51, 923,532.60 and 216,055.47 is: 324,227.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,413.51 : 923,532.60 = 216,055.47 : x
  2. Step 2: Convert to fraction form
    615,413.51/923,532.60 = 216,055.47/x
  3. Step 3: Cross multiply
    615,413.51x = 923,532.60 × 216,055.47
  4. Step 4: Simplify right side
    615,413.51x = 199,534,269,953.32
  5. Step 5: Solve for x
    x = 199,534,269,953.32/615,413.51
  6. Step 6: Final answer
    x = 324,227.96

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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.