Home / 917,676.30-1,266,429.21-627,895.65

Finding the Fourth Proportional to 917,676.30, 1,266,429.21 and 627,895.65

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Solution

The fourth proportional to 917,676.30, 1,266,429.21 and 627,895.65 is: 866,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,676.30 : 1,266,429.21 = 627,895.65 : x
  2. Step 2: Convert to fraction form
    917,676.30/1,266,429.21 = 627,895.65/x
  3. Step 3: Cross multiply
    917,676.30x = 1,266,429.21 × 627,895.65
  4. Step 4: Simplify right side
    917,676.30x = 795,185,391,991.94
  5. Step 5: Solve for x
    x = 795,185,391,991.94/917,676.30
  6. Step 6: Final answer
    x = 866,520.57

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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.