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Finding the Fourth Proportional to 371,155.63, 557,013.33 and 271,572.75

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Solution

The fourth proportional to 371,155.63, 557,013.33 and 271,572.75 is: 407,563.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,155.63 : 557,013.33 = 271,572.75 : x
  2. Step 2: Convert to fraction form
    371,155.63/557,013.33 = 271,572.75/x
  3. Step 3: Cross multiply
    371,155.63x = 557,013.33 × 271,572.75
  4. Step 4: Simplify right side
    371,155.63x = 151,269,641,814.76
  5. Step 5: Solve for x
    x = 151,269,641,814.76/371,155.63
  6. Step 6: Final answer
    x = 407,563.92

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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.