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Finding the Fourth Proportional to 365,878.72, 504,836.90 and 251,115.20

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Solution

The fourth proportional to 365,878.72, 504,836.90 and 251,115.20 is: 346,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,878.72 : 504,836.90 = 251,115.20 : x
  2. Step 2: Convert to fraction form
    365,878.72/504,836.90 = 251,115.20/x
  3. Step 3: Cross multiply
    365,878.72x = 504,836.90 × 251,115.20
  4. Step 4: Simplify right side
    365,878.72x = 126,772,219,110.88
  5. Step 5: Solve for x
    x = 126,772,219,110.88/365,878.72
  6. Step 6: Final answer
    x = 346,487.00

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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.