Home / 869,190.26-1,199,478.79-487,217.04

Finding the Fourth Proportional to 869,190.26, 1,199,478.79 and 487,217.04

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Solution

The fourth proportional to 869,190.26, 1,199,478.79 and 487,217.04 is: 672,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,190.26 : 1,199,478.79 = 487,217.04 : x
  2. Step 2: Convert to fraction form
    869,190.26/1,199,478.79 = 487,217.04/x
  3. Step 3: Cross multiply
    869,190.26x = 1,199,478.79 × 487,217.04
  4. Step 4: Simplify right side
    869,190.26x = 584,406,505,606.58
  5. Step 5: Solve for x
    x = 584,406,505,606.58/869,190.26
  6. Step 6: Final answer
    x = 672,357.40

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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.