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Finding the Fourth Proportional to 546,443.80, 819,665.70 and 367,984.60

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Solution

The fourth proportional to 546,443.80, 819,665.70 and 367,984.60 is: 551,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,443.80 : 819,665.70 = 367,984.60 : x
  2. Step 2: Convert to fraction form
    546,443.80/819,665.70 = 367,984.60/x
  3. Step 3: Cross multiply
    546,443.80x = 819,665.70 × 367,984.60
  4. Step 4: Simplify right side
    546,443.80x = 301,624,354,748.22
  5. Step 5: Solve for x
    x = 301,624,354,748.22/546,443.80
  6. Step 6: Final answer
    x = 551,976.90

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Double scale
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Similar ratio
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1.5x scale

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.