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Finding the Fourth Proportional to 481,536.80, 722,420.40 and 200,898.08

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Solution

The fourth proportional to 481,536.80, 722,420.40 and 200,898.08 is: 301,395.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,536.80 : 722,420.40 = 200,898.08 : x
  2. Step 2: Convert to fraction form
    481,536.80/722,420.40 = 200,898.08/x
  3. Step 3: Cross multiply
    481,536.80x = 722,420.40 × 200,898.08
  4. Step 4: Simplify right side
    481,536.80x = 145,132,871,312.83
  5. Step 5: Solve for x
    x = 145,132,871,312.83/481,536.80
  6. Step 6: Final answer
    x = 301,395.18

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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.