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Finding the Fourth Proportional to 464,784.75, 641,402.96 and 263,580.75

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Solution

The fourth proportional to 464,784.75, 641,402.96 and 263,580.75 is: 363,741.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,784.75 : 641,402.96 = 263,580.75 : x
  2. Step 2: Convert to fraction form
    464,784.75/641,402.96 = 263,580.75/x
  3. Step 3: Cross multiply
    464,784.75x = 641,402.96 × 263,580.75
  4. Step 4: Simplify right side
    464,784.75x = 169,061,471,931.12
  5. Step 5: Solve for x
    x = 169,061,471,931.12/464,784.75
  6. Step 6: Final answer
    x = 363,741.44

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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.