Home / 919,991.32-1,379,986.57-246,055.12

Finding the Fourth Proportional to 919,991.32, 1,379,986.57 and 246,055.12

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Solution

The fourth proportional to 919,991.32, 1,379,986.57 and 246,055.12 is: 369,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,991.32 : 1,379,986.57 = 246,055.12 : x
  2. Step 2: Convert to fraction form
    919,991.32/1,379,986.57 = 246,055.12/x
  3. Step 3: Cross multiply
    919,991.32x = 1,379,986.57 × 246,055.12
  4. Step 4: Simplify right side
    919,991.32x = 339,552,757,937.34
  5. Step 5: Solve for x
    x = 339,552,757,937.34/919,991.32
  6. Step 6: Final answer
    x = 369,082.57

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Double scale
Find fourth proportional to 919,992.32, 1,379,988.07 and 246,056.12
Similar ratio
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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.