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Finding the Fourth Proportional to 456,965.15, 630,611.39 and 255,761.15

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Solution

The fourth proportional to 456,965.15, 630,611.39 and 255,761.15 is: 352,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,965.15 : 630,611.39 = 255,761.15 : x
  2. Step 2: Convert to fraction form
    456,965.15/630,611.39 = 255,761.15/x
  3. Step 3: Cross multiply
    456,965.15x = 630,611.39 × 255,761.15
  4. Step 4: Simplify right side
    456,965.15x = 161,285,891,795.84
  5. Step 5: Solve for x
    x = 161,285,891,795.84/456,965.15
  6. Step 6: Final answer
    x = 352,950.10

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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.