Home / 1,284,620.85-1,772,647.60-711,553.95

Finding the Fourth Proportional to 1,284,620.85, 1,772,647.60 and 711,553.95

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Solution

The fourth proportional to 1,284,620.85, 1,772,647.60 and 711,553.95 is: 981,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,620.85 : 1,772,647.60 = 711,553.95 : x
  2. Step 2: Convert to fraction form
    1,284,620.85/1,772,647.60 = 711,553.95/x
  3. Step 3: Cross multiply
    1,284,620.85x = 1,772,647.60 × 711,553.95
  4. Step 4: Simplify right side
    1,284,620.85x = 1,261,334,406,606.56
  5. Step 5: Solve for x
    x = 1,261,334,406,606.56/1,284,620.85
  6. Step 6: Final answer
    x = 981,872.90

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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.