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Finding the Fourth Proportional to 618,412.05, 927,750.51 and 191,938.95

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Solution

The fourth proportional to 618,412.05, 927,750.51 and 191,938.95 is: 287,949.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,412.05 : 927,750.51 = 191,938.95 : x
  2. Step 2: Convert to fraction form
    618,412.05/927,750.51 = 191,938.95/x
  3. Step 3: Cross multiply
    618,412.05x = 927,750.51 × 191,938.95
  4. Step 4: Simplify right side
    618,412.05x = 178,071,458,751.37
  5. Step 5: Solve for x
    x = 178,071,458,751.37/618,412.05
  6. Step 6: Final answer
    x = 287,949.53

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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.