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Finding the Fourth Proportional to 447,422.94, 617,443.76 and 246,218.94

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Solution

The fourth proportional to 447,422.94, 617,443.76 and 246,218.94 is: 339,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,422.94 : 617,443.76 = 246,218.94 : x
  2. Step 2: Convert to fraction form
    447,422.94/617,443.76 = 246,218.94/x
  3. Step 3: Cross multiply
    447,422.94x = 617,443.76 × 246,218.94
  4. Step 4: Simplify right side
    447,422.94x = 152,026,348,096.81
  5. Step 5: Solve for x
    x = 152,026,348,096.81/447,422.94
  6. Step 6: Final answer
    x = 339,782.19

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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.