Home / 662,889.06-914,761.07-405,197.45

Finding the Fourth Proportional to 662,889.06, 914,761.07 and 405,197.45

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Solution

The fourth proportional to 662,889.06, 914,761.07 and 405,197.45 is: 559,156.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,889.06 : 914,761.07 = 405,197.45 : x
  2. Step 2: Convert to fraction form
    662,889.06/914,761.07 = 405,197.45/x
  3. Step 3: Cross multiply
    662,889.06x = 914,761.07 × 405,197.45
  4. Step 4: Simplify right side
    662,889.06x = 370,658,846,323.48
  5. Step 5: Solve for x
    x = 370,658,846,323.48/662,889.06
  6. Step 6: Final answer
    x = 559,156.68

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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.