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Finding the Fourth Proportional to 476,633.16, 657,785.96 and 261,775.45

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Solution

The fourth proportional to 476,633.16, 657,785.96 and 261,775.45 is: 361,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,633.16 : 657,785.96 = 261,775.45 : x
  2. Step 2: Convert to fraction form
    476,633.16/657,785.96 = 261,775.45/x
  3. Step 3: Cross multiply
    476,633.16x = 657,785.96 × 261,775.45
  4. Step 4: Simplify right side
    476,633.16x = 172,192,213,950.14
  5. Step 5: Solve for x
    x = 172,192,213,950.14/476,633.16
  6. Step 6: Final answer
    x = 361,267.80

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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.