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Finding the Fourth Proportional to 486,595.90, 671,503.94 and 271,743.94

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Solution

The fourth proportional to 486,595.90, 671,503.94 and 271,743.94 is: 375,007.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,595.90 : 671,503.94 = 271,743.94 : x
  2. Step 2: Convert to fraction form
    486,595.90/671,503.94 = 271,743.94/x
  3. Step 3: Cross multiply
    486,595.90x = 671,503.94 × 271,743.94
  4. Step 4: Simplify right side
    486,595.90x = 182,477,126,381.12
  5. Step 5: Solve for x
    x = 182,477,126,381.12/486,595.90
  6. Step 6: Final answer
    x = 375,007.53

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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.