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Finding the Fourth Proportional to 475,098.48, 655,646.45 and 271,145.34

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Solution

The fourth proportional to 475,098.48, 655,646.45 and 271,145.34 is: 374,186.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,098.48 : 655,646.45 = 271,145.34 : x
  2. Step 2: Convert to fraction form
    475,098.48/655,646.45 = 271,145.34/x
  3. Step 3: Cross multiply
    475,098.48x = 655,646.45 × 271,145.34
  4. Step 4: Simplify right side
    475,098.48x = 177,775,478,249.32
  5. Step 5: Solve for x
    x = 177,775,478,249.32/475,098.48
  6. Step 6: Final answer
    x = 374,186.59

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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.