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Finding the Fourth Proportional to 532,103.73, 734,318.70 and 290,401.82

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Solution

The fourth proportional to 532,103.73, 734,318.70 and 290,401.82 is: 400,763.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,103.73 : 734,318.70 = 290,401.82 : x
  2. Step 2: Convert to fraction form
    532,103.73/734,318.70 = 290,401.82/x
  3. Step 3: Cross multiply
    532,103.73x = 734,318.70 × 290,401.82
  4. Step 4: Simplify right side
    532,103.73x = 213,247,486,940.03
  5. Step 5: Solve for x
    x = 213,247,486,940.03/532,103.73
  6. Step 6: Final answer
    x = 400,763.00

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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.