Home / 483,130.26-666,817.68-279,189.78

Finding the Fourth Proportional to 483,130.26, 666,817.68 and 279,189.78

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Solution

The fourth proportional to 483,130.26, 666,817.68 and 279,189.78 is: 385,338.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,130.26 : 666,817.68 = 279,189.78 : x
  2. Step 2: Convert to fraction form
    483,130.26/666,817.68 = 279,189.78/x
  3. Step 3: Cross multiply
    483,130.26x = 666,817.68 × 279,189.78
  4. Step 4: Simplify right side
    483,130.26x = 186,168,681,379.31
  5. Step 5: Solve for x
    x = 186,168,681,379.31/483,130.26
  6. Step 6: Final answer
    x = 385,338.48

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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.