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Finding the Fourth Proportional to 973,912.80, 1,458,244.80 and 763,960.80

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Solution

The fourth proportional to 973,912.80, 1,458,244.80 and 763,960.80 is: 1,143,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    973,912.80 : 1,458,244.80 = 763,960.80 : x
  2. Step 2: Convert to fraction form
    973,912.80/1,458,244.80 = 763,960.80/x
  3. Step 3: Cross multiply
    973,912.80x = 1,458,244.80 × 763,960.80
  4. Step 4: Simplify right side
    973,912.80x = 1,114,041,864,003.84
  5. Step 5: Solve for x
    x = 1,114,041,864,003.84/973,912.80
  6. Step 6: Final answer
    x = 1,143,882.56

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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.