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Finding the Fourth Proportional to 546,072.30, 819,108.45 and 488,991.60

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Solution

The fourth proportional to 546,072.30, 819,108.45 and 488,991.60 is: 733,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,072.30 : 819,108.45 = 488,991.60 : x
  2. Step 2: Convert to fraction form
    546,072.30/819,108.45 = 488,991.60/x
  3. Step 3: Cross multiply
    546,072.30x = 819,108.45 × 488,991.60
  4. Step 4: Simplify right side
    546,072.30x = 400,537,151,539.02
  5. Step 5: Solve for x
    x = 400,537,151,539.02/546,072.30
  6. Step 6: Final answer
    x = 733,487.40

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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.