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Finding the Fourth Proportional to 631,011.87, 946,577.29 and 489,016.19

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Solution

The fourth proportional to 631,011.87, 946,577.29 and 489,016.19 is: 733,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,011.87 : 946,577.29 = 489,016.19 : x
  2. Step 2: Convert to fraction form
    631,011.87/946,577.29 = 489,016.19/x
  3. Step 3: Cross multiply
    631,011.87x = 946,577.29 × 489,016.19
  4. Step 4: Simplify right side
    631,011.87x = 462,891,619,896.33
  5. Step 5: Solve for x
    x = 462,891,619,896.33/631,011.87
  6. Step 6: Final answer
    x = 733,570.38

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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.