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Finding the Fourth Proportional to 450,649.50, 621,891.18 and 246,697.98

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Solution

The fourth proportional to 450,649.50, 621,891.18 and 246,697.98 is: 340,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,649.50 : 621,891.18 = 246,697.98 : x
  2. Step 2: Convert to fraction form
    450,649.50/621,891.18 = 246,697.98/x
  3. Step 3: Cross multiply
    450,649.50x = 621,891.18 × 246,697.98
  4. Step 4: Simplify right side
    450,649.50x = 153,419,297,885.82
  5. Step 5: Solve for x
    x = 153,419,297,885.82/450,649.50
  6. Step 6: Final answer
    x = 340,440.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.