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Finding the Fourth Proportional to 483,996.40, 726,140.40 and 344,028.40

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Solution

The fourth proportional to 483,996.40, 726,140.40 and 344,028.40 is: 516,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,996.40 : 726,140.40 = 344,028.40 : x
  2. Step 2: Convert to fraction form
    483,996.40/726,140.40 = 344,028.40/x
  3. Step 3: Cross multiply
    483,996.40x = 726,140.40 × 344,028.40
  4. Step 4: Simplify right side
    483,996.40x = 249,812,919,987.36
  5. Step 5: Solve for x
    x = 249,812,919,987.36/483,996.40
  6. Step 6: Final answer
    x = 516,146.24

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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.