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Finding the Fourth Proportional to 1,890,899.34, 2,836,373.69 and 628,726.96

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Solution

The fourth proportional to 1,890,899.34, 2,836,373.69 and 628,726.96 is: 943,098.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,899.34 : 2,836,373.69 = 628,726.96 : x
  2. Step 2: Convert to fraction form
    1,890,899.34/2,836,373.69 = 628,726.96/x
  3. Step 3: Cross multiply
    1,890,899.34x = 2,836,373.69 × 628,726.96
  4. Step 4: Simplify right side
    1,890,899.34x = 1,783,304,607,537.68
  5. Step 5: Solve for x
    x = 1,783,304,607,537.68/1,890,899.34
  6. Step 6: Final answer
    x = 943,098.65

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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.