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Finding the Fourth Proportional to 449,373.61, 619,850.80 and 341,707.60

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Solution

The fourth proportional to 449,373.61, 619,850.80 and 341,707.60 is: 471,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,373.61 : 619,850.80 = 341,707.60 : x
  2. Step 2: Convert to fraction form
    449,373.61/619,850.80 = 341,707.60/x
  3. Step 3: Cross multiply
    449,373.61x = 619,850.80 × 341,707.60
  4. Step 4: Simplify right side
    449,373.61x = 211,807,729,226.08
  5. Step 5: Solve for x
    x = 211,807,729,226.08/449,373.61
  6. Step 6: Final answer
    x = 471,339.94

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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.