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Finding the Fourth Proportional to 486,502.02, 671,366.43 and 271,645.74

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Solution

The fourth proportional to 486,502.02, 671,366.43 and 271,645.74 is: 374,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,502.02 : 671,366.43 = 271,645.74 : x
  2. Step 2: Convert to fraction form
    486,502.02/671,366.43 = 271,645.74/x
  3. Step 3: Cross multiply
    486,502.02x = 671,366.43 × 271,645.74
  4. Step 4: Simplify right side
    486,502.02x = 182,373,830,688.51
  5. Step 5: Solve for x
    x = 182,373,830,688.51/486,502.02
  6. Step 6: Final answer
    x = 374,867.57

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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.