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Finding the Fourth Proportional to 618,503.14, 927,899.90 and 192,017.18

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Solution

The fourth proportional to 618,503.14, 927,899.90 and 192,017.18 is: 288,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,503.14 : 927,899.90 = 192,017.18 : x
  2. Step 2: Convert to fraction form
    618,503.14/927,899.90 = 192,017.18/x
  3. Step 3: Cross multiply
    618,503.14x = 927,899.90 × 192,017.18
  4. Step 4: Simplify right side
    618,503.14x = 178,172,725,280.11
  5. Step 5: Solve for x
    x = 178,172,725,280.11/618,503.14
  6. Step 6: Final answer
    x = 288,070.85

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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.