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Finding the Fourth Proportional to 415,141.16, 572,695.94 and 399,046.44

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Solution

The fourth proportional to 415,141.16, 572,695.94 and 399,046.44 is: 550,492.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,141.16 : 572,695.94 = 399,046.44 : x
  2. Step 2: Convert to fraction form
    415,141.16/572,695.94 = 399,046.44/x
  3. Step 3: Cross multiply
    415,141.16x = 572,695.94 × 399,046.44
  4. Step 4: Simplify right side
    415,141.16x = 228,532,276,059.45
  5. Step 5: Solve for x
    x = 228,532,276,059.45/415,141.16
  6. Step 6: Final answer
    x = 550,492.94

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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.