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Finding the Fourth Proportional to 253,571.63, 380,215.15 and 173,699.87

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Solution

The fourth proportional to 253,571.63, 380,215.15 and 173,699.87 is: 260,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,571.63 : 380,215.15 = 173,699.87 : x
  2. Step 2: Convert to fraction form
    253,571.63/380,215.15 = 173,699.87/x
  3. Step 3: Cross multiply
    253,571.63x = 380,215.15 × 173,699.87
  4. Step 4: Simplify right side
    253,571.63x = 66,043,319,357.46
  5. Step 5: Solve for x
    x = 66,043,319,357.46/253,571.63
  6. Step 6: Final answer
    x = 260,452.33

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1.5x scale

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.