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Finding the Fourth Proportional to 446,398.28, 615,933.79 and 265,171.31

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Solution

The fourth proportional to 446,398.28, 615,933.79 and 265,171.31 is: 365,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,398.28 : 615,933.79 = 265,171.31 : x
  2. Step 2: Convert to fraction form
    446,398.28/615,933.79 = 265,171.31/x
  3. Step 3: Cross multiply
    446,398.28x = 615,933.79 × 265,171.31
  4. Step 4: Simplify right side
    446,398.28x = 163,327,968,641.71
  5. Step 5: Solve for x
    x = 163,327,968,641.71/446,398.28
  6. Step 6: Final answer
    x = 365,879.48

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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.