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Finding the Fourth Proportional to 325,575.42, 488,381.58 and 100,967.78

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Solution

The fourth proportional to 325,575.42, 488,381.58 and 100,967.78 is: 151,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,575.42 : 488,381.58 = 100,967.78 : x
  2. Step 2: Convert to fraction form
    325,575.42/488,381.58 = 100,967.78/x
  3. Step 3: Cross multiply
    325,575.42x = 488,381.58 × 100,967.78
  4. Step 4: Simplify right side
    325,575.42x = 49,310,801,483.58
  5. Step 5: Solve for x
    x = 49,310,801,483.58/325,575.42
  6. Step 6: Final answer
    x = 151,457.38

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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.