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Finding the Fourth Proportional to 260,212.96, 358,895.76 and 223,976.08

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Solution

The fourth proportional to 260,212.96, 358,895.76 and 223,976.08 is: 308,916.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,212.96 : 358,895.76 = 223,976.08 : x
  2. Step 2: Convert to fraction form
    260,212.96/358,895.76 = 223,976.08/x
  3. Step 3: Cross multiply
    260,212.96x = 358,895.76 × 223,976.08
  4. Step 4: Simplify right side
    260,212.96x = 80,384,065,453.42
  5. Step 5: Solve for x
    x = 80,384,065,453.42/260,212.96
  6. Step 6: Final answer
    x = 308,916.46

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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.