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Finding the Fourth Proportional to 347,861.60, 521,792.40 and 223,445.60

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Solution

The fourth proportional to 347,861.60, 521,792.40 and 223,445.60 is: 335,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,861.60 : 521,792.40 = 223,445.60 : x
  2. Step 2: Convert to fraction form
    347,861.60/521,792.40 = 223,445.60/x
  3. Step 3: Cross multiply
    347,861.60x = 521,792.40 × 223,445.60
  4. Step 4: Simplify right side
    347,861.60x = 116,592,215,893.44
  5. Step 5: Solve for x
    x = 116,592,215,893.44/347,861.60
  6. Step 6: Final answer
    x = 335,168.40

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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.