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Finding the Fourth Proportional to 478,516.55, 719,093.16 and 254,045.16

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Solution

The fourth proportional to 478,516.55, 719,093.16 and 254,045.16 is: 381,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,516.55 : 719,093.16 = 254,045.16 : x
  2. Step 2: Convert to fraction form
    478,516.55/719,093.16 = 254,045.16/x
  3. Step 3: Cross multiply
    478,516.55x = 719,093.16 × 254,045.16
  4. Step 4: Simplify right side
    478,516.55x = 182,682,136,887.11
  5. Step 5: Solve for x
    x = 182,682,136,887.11/478,516.55
  6. Step 6: Final answer
    x = 381,767.65

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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.