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Finding the Fourth Proportional to 546,072.80, 819,109.20 and 488,992.10

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Solution

The fourth proportional to 546,072.80, 819,109.20 and 488,992.10 is: 733,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,072.80 : 819,109.20 = 488,992.10 : x
  2. Step 2: Convert to fraction form
    546,072.80/819,109.20 = 488,992.10/x
  3. Step 3: Cross multiply
    546,072.80x = 819,109.20 × 488,992.10
  4. Step 4: Simplify right side
    546,072.80x = 400,537,927,837.32
  5. Step 5: Solve for x
    x = 400,537,927,837.32/546,072.80
  6. Step 6: Final answer
    x = 733,488.15

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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.