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Finding the Fourth Proportional to 610,242.66, 842,184.60 and 338,395.80

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Solution

The fourth proportional to 610,242.66, 842,184.60 and 338,395.80 is: 467,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,242.66 : 842,184.60 = 338,395.80 : x
  2. Step 2: Convert to fraction form
    610,242.66/842,184.60 = 338,395.80/x
  3. Step 3: Cross multiply
    610,242.66x = 842,184.60 × 338,395.80
  4. Step 4: Simplify right side
    610,242.66x = 284,991,731,464.68
  5. Step 5: Solve for x
    x = 284,991,731,464.68/610,242.66
  6. Step 6: Final answer
    x = 467,013.78

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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.