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Finding the Fourth Proportional to 362,655.65, 500,455.70 and 201,511.11

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Solution

The fourth proportional to 362,655.65, 500,455.70 and 201,511.11 is: 278,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,655.65 : 500,455.70 = 201,511.11 : x
  2. Step 2: Convert to fraction form
    362,655.65/500,455.70 = 201,511.11/x
  3. Step 3: Cross multiply
    362,655.65x = 500,455.70 × 201,511.11
  4. Step 4: Simplify right side
    362,655.65x = 100,847,382,605.27
  5. Step 5: Solve for x
    x = 100,847,382,605.27/362,655.65
  6. Step 6: Final answer
    x = 278,080.28

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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.