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Finding the Fourth Proportional to 470,520.16, 705,383.48 and 204,080

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Solution

The fourth proportional to 470,520.16, 705,383.48 and 204,080 is: 305,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,520.16 : 705,383.48 = 204,080 : x
  2. Step 2: Convert to fraction form
    470,520.16/705,383.48 = 204,080/x
  3. Step 3: Cross multiply
    470,520.16x = 705,383.48 × 204,080
  4. Step 4: Simplify right side
    470,520.16x = 143,954,660,598.40
  5. Step 5: Solve for x
    x = 143,954,660,598.40/470,520.16
  6. Step 6: Final answer
    x = 305,947.91

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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.