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Finding the Fourth Proportional to 546,017.40, 818,028.18 and 395,885.88

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Solution

The fourth proportional to 546,017.40, 818,028.18 and 395,885.88 is: 593,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,017.40 : 818,028.18 = 395,885.88 : x
  2. Step 2: Convert to fraction form
    546,017.40/818,028.18 = 395,885.88/x
  3. Step 3: Cross multiply
    546,017.40x = 818,028.18 × 395,885.88
  4. Step 4: Simplify right side
    546,017.40x = 323,845,805,904.10
  5. Step 5: Solve for x
    x = 323,845,805,904.10/546,017.40
  6. Step 6: Final answer
    x = 593,105.29

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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.