Home / 1,613,113.60-2,419,670.40-431,161.60

Finding the Fourth Proportional to 1,613,113.60, 2,419,670.40 and 431,161.60

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Solution

The fourth proportional to 1,613,113.60, 2,419,670.40 and 431,161.60 is: 646,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,113.60 : 2,419,670.40 = 431,161.60 : x
  2. Step 2: Convert to fraction form
    1,613,113.60/2,419,670.40 = 431,161.60/x
  3. Step 3: Cross multiply
    1,613,113.60x = 2,419,670.40 × 431,161.60
  4. Step 4: Simplify right side
    1,613,113.60x = 1,043,268,961,136.64
  5. Step 5: Solve for x
    x = 1,043,268,961,136.64/1,613,113.60
  6. Step 6: Final answer
    x = 646,742.40

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.