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Finding the Fourth Proportional to 784,902.80, 1,174,729.80 and 548,706.80

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Solution

The fourth proportional to 784,902.80, 1,174,729.80 and 548,706.80 is: 821,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,902.80 : 1,174,729.80 = 548,706.80 : x
  2. Step 2: Convert to fraction form
    784,902.80/1,174,729.80 = 548,706.80/x
  3. Step 3: Cross multiply
    784,902.80x = 1,174,729.80 × 548,706.80
  4. Step 4: Simplify right side
    784,902.80x = 644,582,229,422.64
  5. Step 5: Solve for x
    x = 644,582,229,422.64/784,902.80
  6. Step 6: Final answer
    x = 821,225.54

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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.