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Finding the Fourth Proportional to 295,751.25, 408,136.73 and 168,438.69

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Solution

The fourth proportional to 295,751.25, 408,136.73 and 168,438.69 is: 232,445.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,751.25 : 408,136.73 = 168,438.69 : x
  2. Step 2: Convert to fraction form
    295,751.25/408,136.73 = 168,438.69/x
  3. Step 3: Cross multiply
    295,751.25x = 408,136.73 × 168,438.69
  4. Step 4: Simplify right side
    295,751.25x = 68,746,015,299.89
  5. Step 5: Solve for x
    x = 68,746,015,299.89/295,751.25
  6. Step 6: Final answer
    x = 232,445.39

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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.