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Finding the Fourth Proportional to 553,540.77, 830,573.60 and 329,344.11

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Solution

The fourth proportional to 553,540.77, 830,573.60 and 329,344.11 is: 494,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,540.77 : 830,573.60 = 329,344.11 : x
  2. Step 2: Convert to fraction form
    553,540.77/830,573.60 = 329,344.11/x
  3. Step 3: Cross multiply
    553,540.77x = 830,573.60 × 329,344.11
  4. Step 4: Simplify right side
    553,540.77x = 273,544,521,434.78
  5. Step 5: Solve for x
    x = 273,544,521,434.78/553,540.77
  6. Step 6: Final answer
    x = 494,172.31

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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.