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Finding the Fourth Proportional to 298,476.89, 411,877.33 and 169,418.04

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Solution

The fourth proportional to 298,476.89, 411,877.33 and 169,418.04 is: 233,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,476.89 : 411,877.33 = 169,418.04 : x
  2. Step 2: Convert to fraction form
    298,476.89/411,877.33 = 169,418.04/x
  3. Step 3: Cross multiply
    298,476.89x = 411,877.33 × 169,418.04
  4. Step 4: Simplify right side
    298,476.89x = 69,779,449,969.03
  5. Step 5: Solve for x
    x = 69,779,449,969.03/298,476.89
  6. Step 6: Final answer
    x = 233,785.10

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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.