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Finding the Fourth Proportional to 609,862.70, 914,016.45 and 293,638.70

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Solution

The fourth proportional to 609,862.70, 914,016.45 and 293,638.70 is: 440,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,862.70 : 914,016.45 = 293,638.70 : x
  2. Step 2: Convert to fraction form
    609,862.70/914,016.45 = 293,638.70/x
  3. Step 3: Cross multiply
    609,862.70x = 914,016.45 × 293,638.70
  4. Step 4: Simplify right side
    609,862.70x = 268,390,602,156.62
  5. Step 5: Solve for x
    x = 268,390,602,156.62/609,862.70
  6. Step 6: Final answer
    x = 440,083.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.