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Finding the Fourth Proportional to 267,337.60, 401,108.80 and 263,139.20

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Solution

The fourth proportional to 267,337.60, 401,108.80 and 263,139.20 is: 394,809.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,337.60 : 401,108.80 = 263,139.20 : x
  2. Step 2: Convert to fraction form
    267,337.60/401,108.80 = 263,139.20/x
  3. Step 3: Cross multiply
    267,337.60x = 401,108.80 × 263,139.20
  4. Step 4: Simplify right side
    267,337.60x = 105,547,448,744.96
  5. Step 5: Solve for x
    x = 105,547,448,744.96/267,337.60
  6. Step 6: Final answer
    x = 394,809.59

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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.