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Finding the Fourth Proportional to 537,796.20, 804,944.70 and 418,823.40

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Solution

The fourth proportional to 537,796.20, 804,944.70 and 418,823.40 is: 626,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,796.20 : 804,944.70 = 418,823.40 : x
  2. Step 2: Convert to fraction form
    537,796.20/804,944.70 = 418,823.40/x
  3. Step 3: Cross multiply
    537,796.20x = 804,944.70 × 418,823.40
  4. Step 4: Simplify right side
    537,796.20x = 337,129,676,065.98
  5. Step 5: Solve for x
    x = 337,129,676,065.98/537,796.20
  6. Step 6: Final answer
    x = 626,872.55

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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.