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Finding the Fourth Proportional to 385,635.76, 532,170.67 and 213,550.32

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Solution

The fourth proportional to 385,635.76, 532,170.67 and 213,550.32 is: 294,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,635.76 : 532,170.67 = 213,550.32 : x
  2. Step 2: Convert to fraction form
    385,635.76/532,170.67 = 213,550.32/x
  3. Step 3: Cross multiply
    385,635.76x = 532,170.67 × 213,550.32
  4. Step 4: Simplify right side
    385,635.76x = 113,645,216,873.11
  5. Step 5: Solve for x
    x = 113,645,216,873.11/385,635.76
  6. Step 6: Final answer
    x = 294,695.74

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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.