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Finding the Fourth Proportional to 624,346.80, 936,425.16 and 203,622

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Solution

The fourth proportional to 624,346.80, 936,425.16 and 203,622 is: 305,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,346.80 : 936,425.16 = 203,622 : x
  2. Step 2: Convert to fraction form
    624,346.80/936,425.16 = 203,622/x
  3. Step 3: Cross multiply
    624,346.80x = 936,425.16 × 203,622
  4. Step 4: Simplify right side
    624,346.80x = 190,676,763,929.52
  5. Step 5: Solve for x
    x = 190,676,763,929.52/624,346.80
  6. Step 6: Final answer
    x = 305,402.00

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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.