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Finding the Fourth Proportional to 546,081.67, 753,530.40 and 316,591.09

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Solution

The fourth proportional to 546,081.67, 753,530.40 and 316,591.09 is: 436,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,081.67 : 753,530.40 = 316,591.09 : x
  2. Step 2: Convert to fraction form
    546,081.67/753,530.40 = 316,591.09/x
  3. Step 3: Cross multiply
    546,081.67x = 753,530.40 × 316,591.09
  4. Step 4: Simplify right side
    546,081.67x = 238,561,010,684.14
  5. Step 5: Solve for x
    x = 238,561,010,684.14/546,081.67
  6. Step 6: Final answer
    x = 436,859.58

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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.