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Finding the Fourth Proportional to 356,404.26, 533,128.94 and 271,522.20

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Solution

The fourth proportional to 356,404.26, 533,128.94 and 271,522.20 is: 406,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,404.26 : 533,128.94 = 271,522.20 : x
  2. Step 2: Convert to fraction form
    356,404.26/533,128.94 = 271,522.20/x
  3. Step 3: Cross multiply
    356,404.26x = 533,128.94 × 271,522.20
  4. Step 4: Simplify right side
    356,404.26x = 144,756,341,314.86
  5. Step 5: Solve for x
    x = 144,756,341,314.86/356,404.26
  6. Step 6: Final answer
    x = 406,157.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.