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Finding the Fourth Proportional to 546,522.20, 819,783.30 and 321,651.80

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Solution

The fourth proportional to 546,522.20, 819,783.30 and 321,651.80 is: 482,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,522.20 : 819,783.30 = 321,651.80 : x
  2. Step 2: Convert to fraction form
    546,522.20/819,783.30 = 321,651.80/x
  3. Step 3: Cross multiply
    546,522.20x = 819,783.30 × 321,651.80
  4. Step 4: Simplify right side
    546,522.20x = 263,684,774,054.94
  5. Step 5: Solve for x
    x = 263,684,774,054.94/546,522.20
  6. Step 6: Final answer
    x = 482,477.70

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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.