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Finding the Fourth Proportional to 618,504.14, 927,901.40 and 192,018.18

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Solution

The fourth proportional to 618,504.14, 927,901.40 and 192,018.18 is: 288,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,504.14 : 927,901.40 = 192,018.18 : x
  2. Step 2: Convert to fraction form
    618,504.14/927,901.40 = 192,018.18/x
  3. Step 3: Cross multiply
    618,504.14x = 927,901.40 × 192,018.18
  4. Step 4: Simplify right side
    618,504.14x = 178,173,938,047.45
  5. Step 5: Solve for x
    x = 178,173,938,047.45/618,504.14
  6. Step 6: Final answer
    x = 288,072.35

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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.