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Finding the Fourth Proportional to 411,405.72, 567,792.48 and 230,127.72

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Solution

The fourth proportional to 411,405.72, 567,792.48 and 230,127.72 is: 317,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,405.72 : 567,792.48 = 230,127.72 : x
  2. Step 2: Convert to fraction form
    411,405.72/567,792.48 = 230,127.72/x
  3. Step 3: Cross multiply
    411,405.72x = 567,792.48 × 230,127.72
  4. Step 4: Simplify right side
    411,405.72x = 130,664,788,855.55
  5. Step 5: Solve for x
    x = 130,664,788,855.55/411,405.72
  6. Step 6: Final answer
    x = 317,605.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.