Home / 1,285,667.96-1,774,102.56-712,659.44

Finding the Fourth Proportional to 1,285,667.96, 1,774,102.56 and 712,659.44

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Solution

The fourth proportional to 1,285,667.96, 1,774,102.56 and 712,659.44 is: 983,403.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,667.96 : 1,774,102.56 = 712,659.44 : x
  2. Step 2: Convert to fraction form
    1,285,667.96/1,774,102.56 = 712,659.44/x
  3. Step 3: Cross multiply
    1,285,667.96x = 1,774,102.56 × 712,659.44
  4. Step 4: Simplify right side
    1,285,667.96x = 1,264,330,936,912.17
  5. Step 5: Solve for x
    x = 1,264,330,936,912.17/1,285,667.96
  6. Step 6: Final answer
    x = 983,403.94

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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.