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Finding the Fourth Proportional to 482,851.32, 666,457.30 and 329,951.40

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Solution

The fourth proportional to 482,851.32, 666,457.30 and 329,951.40 is: 455,416.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,851.32 : 666,457.30 = 329,951.40 : x
  2. Step 2: Convert to fraction form
    482,851.32/666,457.30 = 329,951.40/x
  3. Step 3: Cross multiply
    482,851.32x = 666,457.30 × 329,951.40
  4. Step 4: Simplify right side
    482,851.32x = 219,898,519,175.22
  5. Step 5: Solve for x
    x = 219,898,519,175.22/482,851.32
  6. Step 6: Final answer
    x = 455,416.63

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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.