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Finding the Fourth Proportional to 653,996.97, 980,985.74 and 180,671.85

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Solution

The fourth proportional to 653,996.97, 980,985.74 and 180,671.85 is: 271,005.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,996.97 : 980,985.74 = 180,671.85 : x
  2. Step 2: Convert to fraction form
    653,996.97/980,985.74 = 180,671.85/x
  3. Step 3: Cross multiply
    653,996.97x = 980,985.74 × 180,671.85
  4. Step 4: Simplify right side
    653,996.97x = 177,236,507,566.06
  5. Step 5: Solve for x
    x = 177,236,507,566.06/653,996.97
  6. Step 6: Final answer
    x = 271,005.09

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Double scale
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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.