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Finding the Fourth Proportional to 479,909.56, 662,280.18 and 265,055.08

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Solution

The fourth proportional to 479,909.56, 662,280.18 and 265,055.08 is: 365,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,909.56 : 662,280.18 = 265,055.08 : x
  2. Step 2: Convert to fraction form
    479,909.56/662,280.18 = 265,055.08/x
  3. Step 3: Cross multiply
    479,909.56x = 662,280.18 × 265,055.08
  4. Step 4: Simplify right side
    479,909.56x = 175,540,726,092.31
  5. Step 5: Solve for x
    x = 175,540,726,092.31/479,909.56
  6. Step 6: Final answer
    x = 365,778.76

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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.