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Finding the Fourth Proportional to 619,096.57, 854,475.80 and 401,574.81

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Solution

The fourth proportional to 619,096.57, 854,475.80 and 401,574.81 is: 554,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,096.57 : 854,475.80 = 401,574.81 : x
  2. Step 2: Convert to fraction form
    619,096.57/854,475.80 = 401,574.81/x
  3. Step 3: Cross multiply
    619,096.57x = 854,475.80 × 401,574.81
  4. Step 4: Simplify right side
    619,096.57x = 343,135,957,034.60
  5. Step 5: Solve for x
    x = 343,135,957,034.60/619,096.57
  6. Step 6: Final answer
    x = 554,252.72

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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.