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Finding the Fourth Proportional to 307,526.80, 461,290.20 and 266,054.80

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Solution

The fourth proportional to 307,526.80, 461,290.20 and 266,054.80 is: 399,082.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,526.80 : 461,290.20 = 266,054.80 : x
  2. Step 2: Convert to fraction form
    307,526.80/461,290.20 = 266,054.80/x
  3. Step 3: Cross multiply
    307,526.80x = 461,290.20 × 266,054.80
  4. Step 4: Simplify right side
    307,526.80x = 122,728,471,902.96
  5. Step 5: Solve for x
    x = 122,728,471,902.96/307,526.80
  6. Step 6: Final answer
    x = 399,082.20

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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.