Home / 772,791.22-1,065,219.65-609,180.91

Finding the Fourth Proportional to 772,791.22, 1,065,219.65 and 609,180.91

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Solution

The fourth proportional to 772,791.22, 1,065,219.65 and 609,180.91 is: 839,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,791.22 : 1,065,219.65 = 609,180.91 : x
  2. Step 2: Convert to fraction form
    772,791.22/1,065,219.65 = 609,180.91/x
  3. Step 3: Cross multiply
    772,791.22x = 1,065,219.65 × 609,180.91
  4. Step 4: Simplify right side
    772,791.22x = 648,911,475,736.88
  5. Step 5: Solve for x
    x = 648,911,475,736.88/772,791.22
  6. Step 6: Final answer
    x = 839,698.30

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Double scale
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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.