Home / 411,193,029.60-616,789,544.40-393,053,176.80

Finding the Fourth Proportional to 411,193,029.60, 616,789,544.40 and 393,053,176.80

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Solution

The fourth proportional to 411,193,029.60, 616,789,544.40 and 393,053,176.80 is: 589,579,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,193,029.60 : 616,789,544.40 = 393,053,176.80 : x
  2. Step 2: Convert to fraction form
    411,193,029.60/616,789,544.40 = 393,053,176.80/x
  3. Step 3: Cross multiply
    411,193,029.60x = 616,789,544.40 × 393,053,176.80
  4. Step 4: Simplify right side
    411,193,029.60x = 242,431,089,843,444,640
  5. Step 5: Solve for x
    x = 242,431,089,843,444,640/411,193,029.60
  6. Step 6: Final answer
    x = 589,579,765.20

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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.