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Finding the Fourth Proportional to 481,554.94, 722,534.01 and 211,543.81

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Solution

The fourth proportional to 481,554.94, 722,534.01 and 211,543.81 is: 317,404.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,554.94 : 722,534.01 = 211,543.81 : x
  2. Step 2: Convert to fraction form
    481,554.94/722,534.01 = 211,543.81/x
  3. Step 3: Cross multiply
    481,554.94x = 722,534.01 × 211,543.81
  4. Step 4: Simplify right side
    481,554.94x = 152,847,597,329.98
  5. Step 5: Solve for x
    x = 152,847,597,329.98/481,554.94
  6. Step 6: Final answer
    x = 317,404.28

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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.