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Finding the Fourth Proportional to 450,905.88, 676,607.76 and 251,338.64

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Solution

The fourth proportional to 450,905.88, 676,607.76 and 251,338.64 is: 377,146.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,905.88 : 676,607.76 = 251,338.64 : x
  2. Step 2: Convert to fraction form
    450,905.88/676,607.76 = 251,338.64/x
  3. Step 3: Cross multiply
    450,905.88x = 676,607.76 × 251,338.64
  4. Step 4: Simplify right side
    450,905.88x = 170,057,674,211.85
  5. Step 5: Solve for x
    x = 170,057,674,211.85/450,905.88
  6. Step 6: Final answer
    x = 377,146.72

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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.