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Finding the Fourth Proportional to 338,782.65, 467,516.86 and 185,817.70

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Solution

The fourth proportional to 338,782.65, 467,516.86 and 185,817.70 is: 256,426.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,782.65 : 467,516.86 = 185,817.70 : x
  2. Step 2: Convert to fraction form
    338,782.65/467,516.86 = 185,817.70/x
  3. Step 3: Cross multiply
    338,782.65x = 467,516.86 × 185,817.70
  4. Step 4: Simplify right side
    338,782.65x = 86,872,907,636.42
  5. Step 5: Solve for x
    x = 86,872,907,636.42/338,782.65
  6. Step 6: Final answer
    x = 256,426.67

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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.