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Finding the Fourth Proportional to 550,410.14, 759,607.60 and 305,441.27

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Solution

The fourth proportional to 550,410.14, 759,607.60 and 305,441.27 is: 421,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,410.14 : 759,607.60 = 305,441.27 : x
  2. Step 2: Convert to fraction form
    550,410.14/759,607.60 = 305,441.27/x
  3. Step 3: Cross multiply
    550,410.14x = 759,607.60 × 305,441.27
  4. Step 4: Simplify right side
    550,410.14x = 232,015,508,905.24
  5. Step 5: Solve for x
    x = 232,015,508,905.24/550,410.14
  6. Step 6: Final answer
    x = 421,532.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.