Home / 419,949.84-579,514.08-247,923.21

Finding the Fourth Proportional to 419,949.84, 579,514.08 and 247,923.21

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Solution

The fourth proportional to 419,949.84, 579,514.08 and 247,923.21 is: 342,124.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,949.84 : 579,514.08 = 247,923.21 : x
  2. Step 2: Convert to fraction form
    419,949.84/579,514.08 = 247,923.21/x
  3. Step 3: Cross multiply
    419,949.84x = 579,514.08 × 247,923.21
  4. Step 4: Simplify right side
    419,949.84x = 143,674,990,953.80
  5. Step 5: Solve for x
    x = 143,674,990,953.80/419,949.84
  6. Step 6: Final answer
    x = 342,124.17

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1.5x scale

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.