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Finding the Fourth Proportional to 358,641.76, 536,633.90 and 263,941.93

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Solution

The fourth proportional to 358,641.76, 536,633.90 and 263,941.93 is: 394,935.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,641.76 : 536,633.90 = 263,941.93 : x
  2. Step 2: Convert to fraction form
    358,641.76/536,633.90 = 263,941.93/x
  3. Step 3: Cross multiply
    358,641.76x = 536,633.90 × 263,941.93
  4. Step 4: Simplify right side
    358,641.76x = 141,640,187,269.43
  5. Step 5: Solve for x
    x = 141,640,187,269.43/358,641.76
  6. Step 6: Final answer
    x = 394,935.01

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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.