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Finding the Fourth Proportional to 486,627.55, 671,448.58 and 271,734.55

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Solution

The fourth proportional to 486,627.55, 671,448.58 and 271,734.55 is: 374,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,627.55 : 671,448.58 = 271,734.55 : x
  2. Step 2: Convert to fraction form
    486,627.55/671,448.58 = 271,734.55/x
  3. Step 3: Cross multiply
    486,627.55x = 671,448.58 × 271,734.55
  4. Step 4: Simplify right side
    486,627.55x = 182,455,775,376.48
  5. Step 5: Solve for x
    x = 182,455,775,376.48/486,627.55
  6. Step 6: Final answer
    x = 374,939.27

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1.5x scale

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.