Home / 259,476.20-388,907.10-193,735.40

Finding the Fourth Proportional to 259,476.20, 388,907.10 and 193,735.40

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Solution

The fourth proportional to 259,476.20, 388,907.10 and 193,735.40 is: 290,373.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,476.20 : 388,907.10 = 193,735.40 : x
  2. Step 2: Convert to fraction form
    259,476.20/388,907.10 = 193,735.40/x
  3. Step 3: Cross multiply
    259,476.20x = 388,907.10 × 193,735.40
  4. Step 4: Simplify right side
    259,476.20x = 75,345,072,581.34
  5. Step 5: Solve for x
    x = 75,345,072,581.34/259,476.20
  6. Step 6: Final answer
    x = 290,373.73

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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.