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Finding the Fourth Proportional to 488,410.40, 732,615.60 and 133,460.30

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Solution

The fourth proportional to 488,410.40, 732,615.60 and 133,460.30 is: 200,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,410.40 : 732,615.60 = 133,460.30 : x
  2. Step 2: Convert to fraction form
    488,410.40/732,615.60 = 133,460.30/x
  3. Step 3: Cross multiply
    488,410.40x = 732,615.60 × 133,460.30
  4. Step 4: Simplify right side
    488,410.40x = 97,775,097,760.68
  5. Step 5: Solve for x
    x = 97,775,097,760.68/488,410.40
  6. Step 6: Final answer
    x = 200,190.45

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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.