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Finding the Fourth Proportional to 450,017.20, 675,025.80 and 401,028.40

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Solution

The fourth proportional to 450,017.20, 675,025.80 and 401,028.40 is: 601,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,017.20 : 675,025.80 = 401,028.40 : x
  2. Step 2: Convert to fraction form
    450,017.20/675,025.80 = 401,028.40/x
  3. Step 3: Cross multiply
    450,017.20x = 675,025.80 × 401,028.40
  4. Step 4: Simplify right side
    450,017.20x = 270,704,516,532.72
  5. Step 5: Solve for x
    x = 270,704,516,532.72/450,017.20
  6. Step 6: Final answer
    x = 601,542.60

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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.