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Finding the Fourth Proportional to 618,065.39, 927,241.86 and 191,578.59

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Solution

The fourth proportional to 618,065.39, 927,241.86 and 191,578.59 is: 287,412.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,065.39 : 927,241.86 = 191,578.59 : x
  2. Step 2: Convert to fraction form
    618,065.39/927,241.86 = 191,578.59/x
  3. Step 3: Cross multiply
    618,065.39x = 927,241.86 × 191,578.59
  4. Step 4: Simplify right side
    618,065.39x = 177,639,688,127.78
  5. Step 5: Solve for x
    x = 177,639,688,127.78/618,065.39
  6. Step 6: Final answer
    x = 287,412.45

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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.