Home / 404,365,542.80-606,548,314.20-388,493,171.60

Finding the Fourth Proportional to 404,365,542.80, 606,548,314.20 and 388,493,171.60

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Solution

The fourth proportional to 404,365,542.80, 606,548,314.20 and 388,493,171.60 is: 582,739,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,365,542.80 : 606,548,314.20 = 388,493,171.60 : x
  2. Step 2: Convert to fraction form
    404,365,542.80/606,548,314.20 = 388,493,171.60/x
  3. Step 3: Cross multiply
    404,365,542.80x = 606,548,314.20 × 388,493,171.60
  4. Step 4: Simplify right side
    404,365,542.80x = 235,639,878,312,191,360
  5. Step 5: Solve for x
    x = 235,639,878,312,191,360/404,365,542.80
  6. Step 6: Final answer
    x = 582,739,757.40

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1.5x scale

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.