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Finding the Fourth Proportional to 619,861.60, 929,792.40 and 541,129.60

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Solution

The fourth proportional to 619,861.60, 929,792.40 and 541,129.60 is: 811,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,861.60 : 929,792.40 = 541,129.60 : x
  2. Step 2: Convert to fraction form
    619,861.60/929,792.40 = 541,129.60/x
  3. Step 3: Cross multiply
    619,861.60x = 929,792.40 × 541,129.60
  4. Step 4: Simplify right side
    619,861.60x = 503,138,189,495.04
  5. Step 5: Solve for x
    x = 503,138,189,495.04/619,861.60
  6. Step 6: Final answer
    x = 811,694.40

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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.