Home / 699,851.20-1,049,776.80-415,998.40

Finding the Fourth Proportional to 699,851.20, 1,049,776.80 and 415,998.40

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Solution

The fourth proportional to 699,851.20, 1,049,776.80 and 415,998.40 is: 623,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,851.20 : 1,049,776.80 = 415,998.40 : x
  2. Step 2: Convert to fraction form
    699,851.20/1,049,776.80 = 415,998.40/x
  3. Step 3: Cross multiply
    699,851.20x = 1,049,776.80 × 415,998.40
  4. Step 4: Simplify right side
    699,851.20x = 436,705,469,157.12
  5. Step 5: Solve for x
    x = 436,705,469,157.12/699,851.20
  6. Step 6: Final answer
    x = 623,997.60

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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.