Home / 889,276.20-1,334,789.10-440,503.80

Finding the Fourth Proportional to 889,276.20, 1,334,789.10 and 440,503.80

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Solution

The fourth proportional to 889,276.20, 1,334,789.10 and 440,503.80 is: 661,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,276.20 : 1,334,789.10 = 440,503.80 : x
  2. Step 2: Convert to fraction form
    889,276.20/1,334,789.10 = 440,503.80/x
  3. Step 3: Cross multiply
    889,276.20x = 1,334,789.10 × 440,503.80
  4. Step 4: Simplify right side
    889,276.20x = 587,979,670,748.58
  5. Step 5: Solve for x
    x = 587,979,670,748.58/889,276.20
  6. Step 6: Final answer
    x = 661,189.03

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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.