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Finding the Fourth Proportional to 546,886.20, 820,329.30 and 191,936.10

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Solution

The fourth proportional to 546,886.20, 820,329.30 and 191,936.10 is: 287,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,886.20 : 820,329.30 = 191,936.10 : x
  2. Step 2: Convert to fraction form
    546,886.20/820,329.30 = 191,936.10/x
  3. Step 3: Cross multiply
    546,886.20x = 820,329.30 × 191,936.10
  4. Step 4: Simplify right side
    546,886.20x = 157,450,806,557.73
  5. Step 5: Solve for x
    x = 157,450,806,557.73/546,886.20
  6. Step 6: Final answer
    x = 287,904.15

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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.