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Finding the Fourth Proportional to 483,994.96, 726,027 and 129,007.12

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Solution

The fourth proportional to 483,994.96, 726,027 and 129,007.12 is: 193,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,994.96 : 726,027 = 129,007.12 : x
  2. Step 2: Convert to fraction form
    483,994.96/726,027 = 129,007.12/x
  3. Step 3: Cross multiply
    483,994.96x = 726,027 × 129,007.12
  4. Step 4: Simplify right side
    483,994.96x = 93,662,652,312.24
  5. Step 5: Solve for x
    x = 93,662,652,312.24/483,994.96
  6. Step 6: Final answer
    x = 193,519.89

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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.