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Finding the Fourth Proportional to 231,792.40, 347,688.60 and 201,379.60

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Solution

The fourth proportional to 231,792.40, 347,688.60 and 201,379.60 is: 302,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,792.40 : 347,688.60 = 201,379.60 : x
  2. Step 2: Convert to fraction form
    231,792.40/347,688.60 = 201,379.60/x
  3. Step 3: Cross multiply
    231,792.40x = 347,688.60 × 201,379.60
  4. Step 4: Simplify right side
    231,792.40x = 70,017,391,192.56
  5. Step 5: Solve for x
    x = 70,017,391,192.56/231,792.40
  6. Step 6: Final answer
    x = 302,069.40

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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.