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Finding the Fourth Proportional to 443,853, 612,517.14 and 242,649

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Solution

The fourth proportional to 443,853, 612,517.14 and 242,649 is: 334,855.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,853 : 612,517.14 = 242,649 : x
  2. Step 2: Convert to fraction form
    443,853/612,517.14 = 242,649/x
  3. Step 3: Cross multiply
    443,853x = 612,517.14 × 242,649
  4. Step 4: Simplify right side
    443,853x = 148,626,671,503.86
  5. Step 5: Solve for x
    x = 148,626,671,503.86/443,853
  6. Step 6: Final answer
    x = 334,855.62

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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.