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Finding the Fourth Proportional to 470,185.36, 648,863.54 and 266,230.90

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Solution

The fourth proportional to 470,185.36, 648,863.54 and 266,230.90 is: 367,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,185.36 : 648,863.54 = 266,230.90 : x
  2. Step 2: Convert to fraction form
    470,185.36/648,863.54 = 266,230.90/x
  3. Step 3: Cross multiply
    470,185.36x = 648,863.54 × 266,230.90
  4. Step 4: Simplify right side
    470,185.36x = 172,747,524,231.39
  5. Step 5: Solve for x
    x = 172,747,524,231.39/470,185.36
  6. Step 6: Final answer
    x = 367,403.03

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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.