Home / 417,968.88-576,973.62-282,186.78

Finding the Fourth Proportional to 417,968.88, 576,973.62 and 282,186.78

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Solution

The fourth proportional to 417,968.88, 576,973.62 and 282,186.78 is: 389,536.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,968.88 : 576,973.62 = 282,186.78 : x
  2. Step 2: Convert to fraction form
    417,968.88/576,973.62 = 282,186.78/x
  3. Step 3: Cross multiply
    417,968.88x = 576,973.62 × 282,186.78
  4. Step 4: Simplify right side
    417,968.88x = 162,814,327,972.74
  5. Step 5: Solve for x
    x = 162,814,327,972.74/417,968.88
  6. Step 6: Final answer
    x = 389,536.96

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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.