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Finding the Fourth Proportional to 403,604.64, 604,991.52 and 179,070.82

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Solution

The fourth proportional to 403,604.64, 604,991.52 and 179,070.82 is: 268,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,604.64 : 604,991.52 = 179,070.82 : x
  2. Step 2: Convert to fraction form
    403,604.64/604,991.52 = 179,070.82/x
  3. Step 3: Cross multiply
    403,604.64x = 604,991.52 × 179,070.82
  4. Step 4: Simplify right side
    403,604.64x = 108,336,327,579.45
  5. Step 5: Solve for x
    x = 108,336,327,579.45/403,604.64
  6. Step 6: Final answer
    x = 268,421.91

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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.