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Finding the Fourth Proportional to 1,837,839.42, 2,756,890.82 and 489,994.98

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Solution

The fourth proportional to 1,837,839.42, 2,756,890.82 and 489,994.98 is: 735,027.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837,839.42 : 2,756,890.82 = 489,994.98 : x
  2. Step 2: Convert to fraction form
    1,837,839.42/2,756,890.82 = 489,994.98/x
  3. Step 3: Cross multiply
    1,837,839.42x = 2,756,890.82 × 489,994.98
  4. Step 4: Simplify right side
    1,837,839.42x = 1,350,862,662,208.08
  5. Step 5: Solve for x
    x = 1,350,862,662,208.08/1,837,839.42
  6. Step 6: Final answer
    x = 735,027.58

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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.