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Finding the Fourth Proportional to 645,562.60, 967,883.10 and 365,165.80

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Solution

The fourth proportional to 645,562.60, 967,883.10 and 365,165.80 is: 547,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,562.60 : 967,883.10 = 365,165.80 : x
  2. Step 2: Convert to fraction form
    645,562.60/967,883.10 = 365,165.80/x
  3. Step 3: Cross multiply
    645,562.60x = 967,883.10 × 365,165.80
  4. Step 4: Simplify right side
    645,562.60x = 353,437,806,517.98
  5. Step 5: Solve for x
    x = 353,437,806,517.98/645,562.60
  6. Step 6: Final answer
    x = 547,488.05

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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.