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Finding the Fourth Proportional to 553,017.98, 762,771.53 and 369,163.98

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Solution

The fourth proportional to 553,017.98, 762,771.53 and 369,163.98 is: 509,183.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,017.98 : 762,771.53 = 369,163.98 : x
  2. Step 2: Convert to fraction form
    553,017.98/762,771.53 = 369,163.98/x
  3. Step 3: Cross multiply
    553,017.98x = 762,771.53 × 369,163.98
  4. Step 4: Simplify right side
    553,017.98x = 281,587,774,768.40
  5. Step 5: Solve for x
    x = 281,587,774,768.40/553,017.98
  6. Step 6: Final answer
    x = 509,183.76

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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.