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Finding the Fourth Proportional to 291,588.59, 436,395.32 and 179,339.91

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Solution

The fourth proportional to 291,588.59, 436,395.32 and 179,339.91 is: 268,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,588.59 : 436,395.32 = 179,339.91 : x
  2. Step 2: Convert to fraction form
    291,588.59/436,395.32 = 179,339.91/x
  3. Step 3: Cross multiply
    291,588.59x = 436,395.32 × 179,339.91
  4. Step 4: Simplify right side
    291,588.59x = 78,263,096,516.52
  5. Step 5: Solve for x
    x = 78,263,096,516.52/291,588.59
  6. Step 6: Final answer
    x = 268,402.47

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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.