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Finding the Fourth Proportional to 467,451, 645,068.70 and 263,513.88

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Solution

The fourth proportional to 467,451, 645,068.70 and 263,513.88 is: 363,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,451 : 645,068.70 = 263,513.88 : x
  2. Step 2: Convert to fraction form
    467,451/645,068.70 = 263,513.88/x
  3. Step 3: Cross multiply
    467,451x = 645,068.70 × 263,513.88
  4. Step 4: Simplify right side
    467,451x = 169,984,556,003.56
  5. Step 5: Solve for x
    x = 169,984,556,003.56/467,451
  6. Step 6: Final answer
    x = 363,641.44

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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.