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Finding the Fourth Proportional to 481,990.56, 718,676.70 and 468,748.64

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Solution

The fourth proportional to 481,990.56, 718,676.70 and 468,748.64 is: 698,932.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,990.56 : 718,676.70 = 468,748.64 : x
  2. Step 2: Convert to fraction form
    481,990.56/718,676.70 = 468,748.64/x
  3. Step 3: Cross multiply
    481,990.56x = 718,676.70 × 468,748.64
  4. Step 4: Simplify right side
    481,990.56x = 336,878,725,724.69
  5. Step 5: Solve for x
    x = 336,878,725,724.69/481,990.56
  6. Step 6: Final answer
    x = 698,932.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.