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Finding the Fourth Proportional to 472,777.75, 652,433.30 and 303,011.88

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Solution

The fourth proportional to 472,777.75, 652,433.30 and 303,011.88 is: 418,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,777.75 : 652,433.30 = 303,011.88 : x
  2. Step 2: Convert to fraction form
    472,777.75/652,433.30 = 303,011.88/x
  3. Step 3: Cross multiply
    472,777.75x = 652,433.30 × 303,011.88
  4. Step 4: Simplify right side
    472,777.75x = 197,695,040,807.60
  5. Step 5: Solve for x
    x = 197,695,040,807.60/472,777.75
  6. Step 6: Final answer
    x = 418,156.40

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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.