Home / 1,261,503.60-1,892,556.72-420,062.64

Finding the Fourth Proportional to 1,261,503.60, 1,892,556.72 and 420,062.64

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Solution

The fourth proportional to 1,261,503.60, 1,892,556.72 and 420,062.64 is: 630,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,503.60 : 1,892,556.72 = 420,062.64 : x
  2. Step 2: Convert to fraction form
    1,261,503.60/1,892,556.72 = 420,062.64/x
  3. Step 3: Cross multiply
    1,261,503.60x = 1,892,556.72 × 420,062.64
  4. Step 4: Simplify right side
    1,261,503.60x = 794,992,372,152.94
  5. Step 5: Solve for x
    x = 794,992,372,152.94/1,261,503.60
  6. Step 6: Final answer
    x = 630,194.30

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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.