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Finding the Fourth Proportional to 615,551.20, 923,326.80 and 482,840.80

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Solution

The fourth proportional to 615,551.20, 923,326.80 and 482,840.80 is: 724,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,551.20 : 923,326.80 = 482,840.80 : x
  2. Step 2: Convert to fraction form
    615,551.20/923,326.80 = 482,840.80/x
  3. Step 3: Cross multiply
    615,551.20x = 923,326.80 × 482,840.80
  4. Step 4: Simplify right side
    615,551.20x = 445,819,850,773.44
  5. Step 5: Solve for x
    x = 445,819,850,773.44/615,551.20
  6. Step 6: Final answer
    x = 724,261.20

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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.