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Finding the Fourth Proportional to 446,145.44, 615,615.71 and 255,121.92

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Solution

The fourth proportional to 446,145.44, 615,615.71 and 255,121.92 is: 352,031.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,145.44 : 615,615.71 = 255,121.92 : x
  2. Step 2: Convert to fraction form
    446,145.44/615,615.71 = 255,121.92/x
  3. Step 3: Cross multiply
    446,145.44x = 615,615.71 × 255,121.92
  4. Step 4: Simplify right side
    446,145.44x = 157,057,060,641.75
  5. Step 5: Solve for x
    x = 157,057,060,641.75/446,145.44
  6. Step 6: Final answer
    x = 352,031.08

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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.