Home / 649,249.65-973,979.10-199,970.37

Finding the Fourth Proportional to 649,249.65, 973,979.10 and 199,970.37

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Solution

The fourth proportional to 649,249.65, 973,979.10 and 199,970.37 is: 299,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,249.65 : 973,979.10 = 199,970.37 : x
  2. Step 2: Convert to fraction form
    649,249.65/973,979.10 = 199,970.37/x
  3. Step 3: Cross multiply
    649,249.65x = 973,979.10 × 199,970.37
  4. Step 4: Simplify right side
    649,249.65x = 194,766,960,999.27
  5. Step 5: Solve for x
    x = 194,766,960,999.27/649,249.65
  6. Step 6: Final answer
    x = 299,987.78

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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.