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Finding the Fourth Proportional to 1,890,952.89, 2,836,453.95 and 628,780.50

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Solution

The fourth proportional to 1,890,952.89, 2,836,453.95 and 628,780.50 is: 943,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,952.89 : 2,836,453.95 = 628,780.50 : x
  2. Step 2: Convert to fraction form
    1,890,952.89/2,836,453.95 = 628,780.50/x
  3. Step 3: Cross multiply
    1,890,952.89x = 2,836,453.95 × 628,780.50
  4. Step 4: Simplify right side
    1,890,952.89x = 1,783,506,932,907.98
  5. Step 5: Solve for x
    x = 1,783,506,932,907.98/1,890,952.89
  6. Step 6: Final answer
    x = 943,178.93

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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.