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Finding the Fourth Proportional to 476,271.75, 714,407.64 and 143,847.75

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Solution

The fourth proportional to 476,271.75, 714,407.64 and 143,847.75 is: 215,771.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,271.75 : 714,407.64 = 143,847.75 : x
  2. Step 2: Convert to fraction form
    476,271.75/714,407.64 = 143,847.75/x
  3. Step 3: Cross multiply
    476,271.75x = 714,407.64 × 143,847.75
  4. Step 4: Simplify right side
    476,271.75x = 102,765,931,596.81
  5. Step 5: Solve for x
    x = 102,765,931,596.81/476,271.75
  6. Step 6: Final answer
    x = 215,771.63

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Similar ratio
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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.