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Finding the Fourth Proportional to 983,266.80, 1,474,900.20 and 684,668.40

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Solution

The fourth proportional to 983,266.80, 1,474,900.20 and 684,668.40 is: 1,027,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,266.80 : 1,474,900.20 = 684,668.40 : x
  2. Step 2: Convert to fraction form
    983,266.80/1,474,900.20 = 684,668.40/x
  3. Step 3: Cross multiply
    983,266.80x = 1,474,900.20 × 684,668.40
  4. Step 4: Simplify right side
    983,266.80x = 1,009,817,560,093.68
  5. Step 5: Solve for x
    x = 1,009,817,560,093.68/983,266.80
  6. Step 6: Final answer
    x = 1,027,002.60

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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.