Home / 393,975.09-543,705.98-240,965.28

Finding the Fourth Proportional to 393,975.09, 543,705.98 and 240,965.28

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Solution

The fourth proportional to 393,975.09, 543,705.98 and 240,965.28 is: 332,544.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,975.09 : 543,705.98 = 240,965.28 : x
  2. Step 2: Convert to fraction form
    393,975.09/543,705.98 = 240,965.28/x
  3. Step 3: Cross multiply
    393,975.09x = 543,705.98 × 240,965.28
  4. Step 4: Simplify right side
    393,975.09x = 131,014,262,503.55
  5. Step 5: Solve for x
    x = 131,014,262,503.55/393,975.09
  6. Step 6: Final answer
    x = 332,544.53

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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.