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Finding the Fourth Proportional to 988,994.81, 1,364,812.84 and 536,285.81

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Solution

The fourth proportional to 988,994.81, 1,364,812.84 and 536,285.81 is: 740,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,994.81 : 1,364,812.84 = 536,285.81 : x
  2. Step 2: Convert to fraction form
    988,994.81/1,364,812.84 = 536,285.81/x
  3. Step 3: Cross multiply
    988,994.81x = 1,364,812.84 × 536,285.81
  4. Step 4: Simplify right side
    988,994.81x = 731,929,763,480.19
  5. Step 5: Solve for x
    x = 731,929,763,480.19/988,994.81
  6. Step 6: Final answer
    x = 740,074.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.