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Finding the Fourth Proportional to 368,427.70, 552,641.55 and 275,115.70

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Solution

The fourth proportional to 368,427.70, 552,641.55 and 275,115.70 is: 412,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,427.70 : 552,641.55 = 275,115.70 : x
  2. Step 2: Convert to fraction form
    368,427.70/552,641.55 = 275,115.70/x
  3. Step 3: Cross multiply
    368,427.70x = 552,641.55 × 275,115.70
  4. Step 4: Simplify right side
    368,427.70x = 152,040,366,877.34
  5. Step 5: Solve for x
    x = 152,040,366,877.34/368,427.70
  6. Step 6: Final answer
    x = 412,673.55

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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.