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Finding the Fourth Proportional to 362,327.40, 543,491.10 and 318,040.65

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Solution

The fourth proportional to 362,327.40, 543,491.10 and 318,040.65 is: 477,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,327.40 : 543,491.10 = 318,040.65 : x
  2. Step 2: Convert to fraction form
    362,327.40/543,491.10 = 318,040.65/x
  3. Step 3: Cross multiply
    362,327.40x = 543,491.10 × 318,040.65
  4. Step 4: Simplify right side
    362,327.40x = 172,852,262,713.22
  5. Step 5: Solve for x
    x = 172,852,262,713.22/362,327.40
  6. Step 6: Final answer
    x = 477,060.98

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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.