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Finding the Fourth Proportional to 976,903.80, 1,465,355.70 and 677,722.20

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Solution

The fourth proportional to 976,903.80, 1,465,355.70 and 677,722.20 is: 1,016,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,903.80 : 1,465,355.70 = 677,722.20 : x
  2. Step 2: Convert to fraction form
    976,903.80/1,465,355.70 = 677,722.20/x
  3. Step 3: Cross multiply
    976,903.80x = 1,465,355.70 × 677,722.20
  4. Step 4: Simplify right side
    976,903.80x = 993,104,088,786.54
  5. Step 5: Solve for x
    x = 993,104,088,786.54/976,903.80
  6. Step 6: Final answer
    x = 1,016,583.30

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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.