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Finding the Fourth Proportional to 546,090.80, 819,136.20 and 492,946.70

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Solution

The fourth proportional to 546,090.80, 819,136.20 and 492,946.70 is: 739,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,090.80 : 819,136.20 = 492,946.70 : x
  2. Step 2: Convert to fraction form
    546,090.80/819,136.20 = 492,946.70/x
  3. Step 3: Cross multiply
    546,090.80x = 819,136.20 × 492,946.70
  4. Step 4: Simplify right side
    546,090.80x = 403,790,486,640.54
  5. Step 5: Solve for x
    x = 403,790,486,640.54/546,090.80
  6. Step 6: Final answer
    x = 739,420.05

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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.