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Finding the Fourth Proportional to 546,085.80, 819,128.70 and 367,626.60

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Solution

The fourth proportional to 546,085.80, 819,128.70 and 367,626.60 is: 551,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,085.80 : 819,128.70 = 367,626.60 : x
  2. Step 2: Convert to fraction form
    546,085.80/819,128.70 = 367,626.60/x
  3. Step 3: Cross multiply
    546,085.80x = 819,128.70 × 367,626.60
  4. Step 4: Simplify right side
    546,085.80x = 301,133,498,943.42
  5. Step 5: Solve for x
    x = 301,133,498,943.42/546,085.80
  6. Step 6: Final answer
    x = 551,439.90

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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.