Home / 990,570.96-1,367,053.25-555,023.22

Finding the Fourth Proportional to 990,570.96, 1,367,053.25 and 555,023.22

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Solution

The fourth proportional to 990,570.96, 1,367,053.25 and 555,023.22 is: 765,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,570.96 : 1,367,053.25 = 555,023.22 : x
  2. Step 2: Convert to fraction form
    990,570.96/1,367,053.25 = 555,023.22/x
  3. Step 3: Cross multiply
    990,570.96x = 1,367,053.25 × 555,023.22
  4. Step 4: Simplify right side
    990,570.96x = 758,746,293,951.35
  5. Step 5: Solve for x
    x = 758,746,293,951.35/990,570.96
  6. Step 6: Final answer
    x = 765,968.64

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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.