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Finding the Fourth Proportional to 505,263.54, 695,493.88 and 440,618.73

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Solution

The fourth proportional to 505,263.54, 695,493.88 and 440,618.73 is: 606,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,263.54 : 695,493.88 = 440,618.73 : x
  2. Step 2: Convert to fraction form
    505,263.54/695,493.88 = 440,618.73/x
  3. Step 3: Cross multiply
    505,263.54x = 695,493.88 × 440,618.73
  4. Step 4: Simplify right side
    505,263.54x = 306,447,630,128.37
  5. Step 5: Solve for x
    x = 306,447,630,128.37/505,263.54
  6. Step 6: Final answer
    x = 606,510.48

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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.