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Finding the Fourth Proportional to 447,773.65, 617,918.76 and 243,827.01

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Solution

The fourth proportional to 447,773.65, 617,918.76 and 243,827.01 is: 336,476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,773.65 : 617,918.76 = 243,827.01 : x
  2. Step 2: Convert to fraction form
    447,773.65/617,918.76 = 243,827.01/x
  3. Step 3: Cross multiply
    447,773.65x = 617,918.76 × 243,827.01
  4. Step 4: Simplify right side
    447,773.65x = 150,665,283,673.71
  5. Step 5: Solve for x
    x = 150,665,283,673.71/447,773.65
  6. Step 6: Final answer
    x = 336,476.44

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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.