Home / 809,985.72-1,117,773.26-447,434.90

Finding the Fourth Proportional to 809,985.72, 1,117,773.26 and 447,434.90

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Solution

The fourth proportional to 809,985.72, 1,117,773.26 and 447,434.90 is: 617,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,985.72 : 1,117,773.26 = 447,434.90 : x
  2. Step 2: Convert to fraction form
    809,985.72/1,117,773.26 = 447,434.90/x
  3. Step 3: Cross multiply
    809,985.72x = 1,117,773.26 × 447,434.90
  4. Step 4: Simplify right side
    809,985.72x = 500,130,766,810.77
  5. Step 5: Solve for x
    x = 500,130,766,810.77/809,985.72
  6. Step 6: Final answer
    x = 617,456.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.