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Finding the Fourth Proportional to 609,912.58, 841,684.32 and 337,985.05

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Solution

The fourth proportional to 609,912.58, 841,684.32 and 337,985.05 is: 466,422.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,912.58 : 841,684.32 = 337,985.05 : x
  2. Step 2: Convert to fraction form
    609,912.58/841,684.32 = 337,985.05/x
  3. Step 3: Cross multiply
    609,912.58x = 841,684.32 × 337,985.05
  4. Step 4: Simplify right side
    609,912.58x = 284,476,716,979.42
  5. Step 5: Solve for x
    x = 284,476,716,979.42/609,912.58
  6. Step 6: Final answer
    x = 466,422.12

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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.