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Finding the Fourth Proportional to 986,544.10, 1,479,706.80 and 276,643.90

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Solution

The fourth proportional to 986,544.10, 1,479,706.80 and 276,643.90 is: 414,935.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,544.10 : 1,479,706.80 = 276,643.90 : x
  2. Step 2: Convert to fraction form
    986,544.10/1,479,706.80 = 276,643.90/x
  3. Step 3: Cross multiply
    986,544.10x = 1,479,706.80 × 276,643.90
  4. Step 4: Simplify right side
    986,544.10x = 409,351,860,008.52
  5. Step 5: Solve for x
    x = 409,351,860,008.52/986,544.10
  6. Step 6: Final answer
    x = 414,935.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.