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Finding the Fourth Proportional to 351,589.76, 485,195.12 and 190,444.32

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Solution

The fourth proportional to 351,589.76, 485,195.12 and 190,444.32 is: 262,813.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,589.76 : 485,195.12 = 190,444.32 : x
  2. Step 2: Convert to fraction form
    351,589.76/485,195.12 = 190,444.32/x
  3. Step 3: Cross multiply
    351,589.76x = 485,195.12 × 190,444.32
  4. Step 4: Simplify right side
    351,589.76x = 92,402,654,695.72
  5. Step 5: Solve for x
    x = 92,402,654,695.72/351,589.76
  6. Step 6: Final answer
    x = 262,813.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.