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Finding the Fourth Proportional to 448,720.40, 673,080.60 and 164,410.40

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Solution

The fourth proportional to 448,720.40, 673,080.60 and 164,410.40 is: 246,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,720.40 : 673,080.60 = 164,410.40 : x
  2. Step 2: Convert to fraction form
    448,720.40/673,080.60 = 164,410.40/x
  3. Step 3: Cross multiply
    448,720.40x = 673,080.60 × 164,410.40
  4. Step 4: Simplify right side
    448,720.40x = 110,661,450,678.24
  5. Step 5: Solve for x
    x = 110,661,450,678.24/448,720.40
  6. Step 6: Final answer
    x = 246,615.60

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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.