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Finding the Fourth Proportional to 681,034.40, 1,019,996.40 and 401,098.40

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Solution

The fourth proportional to 681,034.40, 1,019,996.40 and 401,098.40 is: 600,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,034.40 : 1,019,996.40 = 401,098.40 : x
  2. Step 2: Convert to fraction form
    681,034.40/1,019,996.40 = 401,098.40/x
  3. Step 3: Cross multiply
    681,034.40x = 1,019,996.40 × 401,098.40
  4. Step 4: Simplify right side
    681,034.40x = 409,118,924,045.76
  5. Step 5: Solve for x
    x = 409,118,924,045.76/681,034.40
  6. Step 6: Final answer
    x = 600,731.66

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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.