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Finding the Fourth Proportional to 450,428.44, 621,591.22 and 246,479.38

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Solution

The fourth proportional to 450,428.44, 621,591.22 and 246,479.38 is: 340,141.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,428.44 : 621,591.22 = 246,479.38 : x
  2. Step 2: Convert to fraction form
    450,428.44/621,591.22 = 246,479.38/x
  3. Step 3: Cross multiply
    450,428.44x = 621,591.22 × 246,479.38
  4. Step 4: Simplify right side
    450,428.44x = 153,209,418,519.04
  5. Step 5: Solve for x
    x = 153,209,418,519.04/450,428.44
  6. Step 6: Final answer
    x = 340,141.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.