Home / 869,189.26-1,199,477.41-487,216.04

Finding the Fourth Proportional to 869,189.26, 1,199,477.41 and 487,216.04

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Solution

The fourth proportional to 869,189.26, 1,199,477.41 and 487,216.04 is: 672,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,189.26 : 1,199,477.41 = 487,216.04 : x
  2. Step 2: Convert to fraction form
    869,189.26/1,199,477.41 = 487,216.04/x
  3. Step 3: Cross multiply
    869,189.26x = 1,199,477.41 × 487,216.04
  4. Step 4: Simplify right side
    869,189.26x = 584,404,633,769.66
  5. Step 5: Solve for x
    x = 584,404,633,769.66/869,189.26
  6. Step 6: Final answer
    x = 672,356.02

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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.