Home / 728,938,110.48-1,005,933,940.74-411,465,183.64

Finding the Fourth Proportional to 728,938,110.48, 1,005,933,940.74 and 411,465,183.64

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Solution

The fourth proportional to 728,938,110.48, 1,005,933,940.74 and 411,465,183.64 is: 567,821,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,938,110.48 : 1,005,933,940.74 = 411,465,183.64 : x
  2. Step 2: Convert to fraction form
    728,938,110.48/1,005,933,940.74 = 411,465,183.64/x
  3. Step 3: Cross multiply
    728,938,110.48x = 1,005,933,940.74 × 411,465,183.64
  4. Step 4: Simplify right side
    728,938,110.48x = 413,906,793,656,292,992
  5. Step 5: Solve for x
    x = 413,906,793,656,292,992/728,938,110.48
  6. Step 6: Final answer
    x = 567,821,585.54

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Double scale
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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.