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Finding the Fourth Proportional to 492,467.43, 679,605.03 and 266,112.93

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Solution

The fourth proportional to 492,467.43, 679,605.03 and 266,112.93 is: 367,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,467.43 : 679,605.03 = 266,112.93 : x
  2. Step 2: Convert to fraction form
    492,467.43/679,605.03 = 266,112.93/x
  3. Step 3: Cross multiply
    492,467.43x = 679,605.03 × 266,112.93
  4. Step 4: Simplify right side
    492,467.43x = 180,851,685,776.04
  5. Step 5: Solve for x
    x = 180,851,685,776.04/492,467.43
  6. Step 6: Final answer
    x = 367,235.83

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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.