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Finding the Fourth Proportional to 481,511.20, 722,266.80 and 362,538.40

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Solution

The fourth proportional to 481,511.20, 722,266.80 and 362,538.40 is: 543,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,511.20 : 722,266.80 = 362,538.40 : x
  2. Step 2: Convert to fraction form
    481,511.20/722,266.80 = 362,538.40/x
  3. Step 3: Cross multiply
    481,511.20x = 722,266.80 × 362,538.40
  4. Step 4: Simplify right side
    481,511.20x = 261,849,450,045.12
  5. Step 5: Solve for x
    x = 261,849,450,045.12/481,511.20
  6. Step 6: Final answer
    x = 543,807.60

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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.