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Finding the Fourth Proportional to 448,087.60, 672,131.40 and 336,113.20

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Solution

The fourth proportional to 448,087.60, 672,131.40 and 336,113.20 is: 504,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,087.60 : 672,131.40 = 336,113.20 : x
  2. Step 2: Convert to fraction form
    448,087.60/672,131.40 = 336,113.20/x
  3. Step 3: Cross multiply
    448,087.60x = 672,131.40 × 336,113.20
  4. Step 4: Simplify right side
    448,087.60x = 225,912,235,674.48
  5. Step 5: Solve for x
    x = 225,912,235,674.48/448,087.60
  6. Step 6: Final answer
    x = 504,169.80

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Similar ratio
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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.