Home / 613,986.93-921,078.81-259,053.23

Finding the Fourth Proportional to 613,986.93, 921,078.81 and 259,053.23

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Solution

The fourth proportional to 613,986.93, 921,078.81 and 259,053.23 is: 388,621.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,986.93 : 921,078.81 = 259,053.23 : x
  2. Step 2: Convert to fraction form
    613,986.93/921,078.81 = 259,053.23/x
  3. Step 3: Cross multiply
    613,986.93x = 921,078.81 × 259,053.23
  4. Step 4: Simplify right side
    613,986.93x = 238,608,440,815.06
  5. Step 5: Solve for x
    x = 238,608,440,815.06/613,986.93
  6. Step 6: Final answer
    x = 388,621.37

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1.5x scale

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.