Home / 769,912.40-1,153,556.40-657,063.20

Finding the Fourth Proportional to 769,912.40, 1,153,556.40 and 657,063.20

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Solution

The fourth proportional to 769,912.40, 1,153,556.40 and 657,063.20 is: 984,474.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,912.40 : 1,153,556.40 = 657,063.20 : x
  2. Step 2: Convert to fraction form
    769,912.40/1,153,556.40 = 657,063.20/x
  3. Step 3: Cross multiply
    769,912.40x = 1,153,556.40 × 657,063.20
  4. Step 4: Simplify right side
    769,912.40x = 757,959,459,564.48
  5. Step 5: Solve for x
    x = 757,959,459,564.48/769,912.40
  6. Step 6: Final answer
    x = 984,474.93

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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.