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Finding the Fourth Proportional to 289,683.60, 434,525.40 and 250,803.60

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Solution

The fourth proportional to 289,683.60, 434,525.40 and 250,803.60 is: 376,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,683.60 : 434,525.40 = 250,803.60 : x
  2. Step 2: Convert to fraction form
    289,683.60/434,525.40 = 250,803.60/x
  3. Step 3: Cross multiply
    289,683.60x = 434,525.40 × 250,803.60
  4. Step 4: Simplify right side
    289,683.60x = 108,980,534,611.44
  5. Step 5: Solve for x
    x = 108,980,534,611.44/289,683.60
  6. Step 6: Final answer
    x = 376,205.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.