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Finding the Fourth Proportional to 474,425.68, 655,142.92 and 304,954.96

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Solution

The fourth proportional to 474,425.68, 655,142.92 and 304,954.96 is: 421,117.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,425.68 : 655,142.92 = 304,954.96 : x
  2. Step 2: Convert to fraction form
    474,425.68/655,142.92 = 304,954.96/x
  3. Step 3: Cross multiply
    474,425.68x = 655,142.92 × 304,954.96
  4. Step 4: Simplify right side
    474,425.68x = 199,789,082,962.88
  5. Step 5: Solve for x
    x = 199,789,082,962.88/474,425.68
  6. Step 6: Final answer
    x = 421,117.77

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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.