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Finding the Fourth Proportional to 403,700.80, 605,464.80 and 179,060.80

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Solution

The fourth proportional to 403,700.80, 605,464.80 and 179,060.80 is: 268,552.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,700.80 : 605,464.80 = 179,060.80 : x
  2. Step 2: Convert to fraction form
    403,700.80/605,464.80 = 179,060.80/x
  3. Step 3: Cross multiply
    403,700.80x = 605,464.80 × 179,060.80
  4. Step 4: Simplify right side
    403,700.80x = 108,415,011,459.84
  5. Step 5: Solve for x
    x = 108,415,011,459.84/403,700.80
  6. Step 6: Final answer
    x = 268,552.88

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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.