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Finding the Fourth Proportional to 403,099.72, 556,507.06 and 267,316.98

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Solution

The fourth proportional to 403,099.72, 556,507.06 and 267,316.98 is: 369,049.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,099.72 : 556,507.06 = 267,316.98 : x
  2. Step 2: Convert to fraction form
    403,099.72/556,507.06 = 267,316.98/x
  3. Step 3: Cross multiply
    403,099.72x = 556,507.06 × 267,316.98
  4. Step 4: Simplify right side
    403,099.72x = 148,763,787,657.66
  5. Step 5: Solve for x
    x = 148,763,787,657.66/403,099.72
  6. Step 6: Final answer
    x = 369,049.59

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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.