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Finding the Fourth Proportional to 546,459.80, 819,689.70 and 542,960.60

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Solution

The fourth proportional to 546,459.80, 819,689.70 and 542,960.60 is: 814,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,459.80 : 819,689.70 = 542,960.60 : x
  2. Step 2: Convert to fraction form
    546,459.80/819,689.70 = 542,960.60/x
  3. Step 3: Cross multiply
    546,459.80x = 819,689.70 × 542,960.60
  4. Step 4: Simplify right side
    546,459.80x = 445,059,211,325.82
  5. Step 5: Solve for x
    x = 445,059,211,325.82/546,459.80
  6. Step 6: Final answer
    x = 814,440.90

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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.