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Finding the Fourth Proportional to 486,594.90, 671,502.56 and 271,742.94

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Solution

The fourth proportional to 486,594.90, 671,502.56 and 271,742.94 is: 375,006.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,594.90 : 671,502.56 = 271,742.94 : x
  2. Step 2: Convert to fraction form
    486,594.90/671,502.56 = 271,742.94/x
  3. Step 3: Cross multiply
    486,594.90x = 671,502.56 × 271,742.94
  4. Step 4: Simplify right side
    486,594.90x = 182,476,078,513.21
  5. Step 5: Solve for x
    x = 182,476,078,513.21/486,594.90
  6. Step 6: Final answer
    x = 375,006.15

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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.