Home / 778,185.38-1,074,395.52-488,194.44

Finding the Fourth Proportional to 778,185.38, 1,074,395.52 and 488,194.44

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Solution

The fourth proportional to 778,185.38, 1,074,395.52 and 488,194.44 is: 674,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,185.38 : 1,074,395.52 = 488,194.44 : x
  2. Step 2: Convert to fraction form
    778,185.38/1,074,395.52 = 488,194.44/x
  3. Step 3: Cross multiply
    778,185.38x = 1,074,395.52 × 488,194.44
  4. Step 4: Simplify right side
    778,185.38x = 524,513,919,224.91
  5. Step 5: Solve for x
    x = 524,513,919,224.91/778,185.38
  6. Step 6: Final answer
    x = 674,021.82

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Half scale
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Double scale
Find fourth proportional to 778,186.38, 1,074,396.90 and 488,195.44
Similar ratio
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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.