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Finding the Fourth Proportional to 476,656.96, 657,794.52 and 261,816.88

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Solution

The fourth proportional to 476,656.96, 657,794.52 and 261,816.88 is: 361,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,656.96 : 657,794.52 = 261,816.88 : x
  2. Step 2: Convert to fraction form
    476,656.96/657,794.52 = 261,816.88/x
  3. Step 3: Cross multiply
    476,656.96x = 657,794.52 × 261,816.88
  4. Step 4: Simplify right side
    476,656.96x = 172,221,708,907.50
  5. Step 5: Solve for x
    x = 172,221,708,907.50/476,656.96
  6. Step 6: Final answer
    x = 361,311.64

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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.