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Finding the Fourth Proportional to 470,170.55, 648,850.43 and 266,218.22

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Solution

The fourth proportional to 470,170.55, 648,850.43 and 266,218.22 is: 367,389.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,170.55 : 648,850.43 = 266,218.22 : x
  2. Step 2: Convert to fraction form
    470,170.55/648,850.43 = 266,218.22/x
  3. Step 3: Cross multiply
    470,170.55x = 648,850.43 × 266,218.22
  4. Step 4: Simplify right side
    470,170.55x = 172,735,806,520.84
  5. Step 5: Solve for x
    x = 172,735,806,520.84/470,170.55
  6. Step 6: Final answer
    x = 367,389.68

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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.