Home / 781,117.50-1,171,676.49-190,141.50

Finding the Fourth Proportional to 781,117.50, 1,171,676.49 and 190,141.50

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Solution

The fourth proportional to 781,117.50, 1,171,676.49 and 190,141.50 is: 285,212.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,117.50 : 1,171,676.49 = 190,141.50 : x
  2. Step 2: Convert to fraction form
    781,117.50/1,171,676.49 = 190,141.50/x
  3. Step 3: Cross multiply
    781,117.50x = 1,171,676.49 × 190,141.50
  4. Step 4: Simplify right side
    781,117.50x = 222,784,325,323.34
  5. Step 5: Solve for x
    x = 222,784,325,323.34/781,117.50
  6. Step 6: Final answer
    x = 285,212.31

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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.