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Finding the Fourth Proportional to 381,696.30, 572,544.45 and 352,827.90

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Solution

The fourth proportional to 381,696.30, 572,544.45 and 352,827.90 is: 529,241.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,696.30 : 572,544.45 = 352,827.90 : x
  2. Step 2: Convert to fraction form
    381,696.30/572,544.45 = 352,827.90/x
  3. Step 3: Cross multiply
    381,696.30x = 572,544.45 × 352,827.90
  4. Step 4: Simplify right side
    381,696.30x = 202,009,655,950.16
  5. Step 5: Solve for x
    x = 202,009,655,950.16/381,696.30
  6. Step 6: Final answer
    x = 529,241.85

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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.