Home / 382,619.82-528,012.87-210,548.28

Finding the Fourth Proportional to 382,619.82, 528,012.87 and 210,548.28

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Solution

The fourth proportional to 382,619.82, 528,012.87 and 210,548.28 is: 290,555.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,619.82 : 528,012.87 = 210,548.28 : x
  2. Step 2: Convert to fraction form
    382,619.82/528,012.87 = 210,548.28/x
  3. Step 3: Cross multiply
    382,619.82x = 528,012.87 × 210,548.28
  4. Step 4: Simplify right side
    382,619.82x = 111,172,201,596.36
  5. Step 5: Solve for x
    x = 111,172,201,596.36/382,619.82
  6. Step 6: Final answer
    x = 290,555.26

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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.