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Finding the Fourth Proportional to 624,155.14, 936,258.63 and 203,434.66

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Solution

The fourth proportional to 624,155.14, 936,258.63 and 203,434.66 is: 305,160.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,155.14 : 936,258.63 = 203,434.66 : x
  2. Step 2: Convert to fraction form
    624,155.14/936,258.63 = 203,434.66/x
  3. Step 3: Cross multiply
    624,155.14x = 936,258.63 × 203,434.66
  4. Step 4: Simplify right side
    624,155.14x = 190,467,456,066.12
  5. Step 5: Solve for x
    x = 190,467,456,066.12/624,155.14
  6. Step 6: Final answer
    x = 305,160.44

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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.