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Finding the Fourth Proportional to 448,966.40, 673,449.60 and 330,868.40

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Solution

The fourth proportional to 448,966.40, 673,449.60 and 330,868.40 is: 496,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,966.40 : 673,449.60 = 330,868.40 : x
  2. Step 2: Convert to fraction form
    448,966.40/673,449.60 = 330,868.40/x
  3. Step 3: Cross multiply
    448,966.40x = 673,449.60 × 330,868.40
  4. Step 4: Simplify right side
    448,966.40x = 222,823,191,632.64
  5. Step 5: Solve for x
    x = 222,823,191,632.64/448,966.40
  6. Step 6: Final answer
    x = 496,302.60

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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.