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Finding the Fourth Proportional to 555,087.52, 765,781.93 and 325,714.96

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Solution

The fourth proportional to 555,087.52, 765,781.93 and 325,714.96 is: 449,346.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,087.52 : 765,781.93 = 325,714.96 : x
  2. Step 2: Convert to fraction form
    555,087.52/765,781.93 = 325,714.96/x
  3. Step 3: Cross multiply
    555,087.52x = 765,781.93 × 325,714.96
  4. Step 4: Simplify right side
    555,087.52x = 249,426,630,698.67
  5. Step 5: Solve for x
    x = 249,426,630,698.67/555,087.52
  6. Step 6: Final answer
    x = 449,346.49

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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.