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Finding the Fourth Proportional to 544,976.80, 817,465.20 and 412,266.40

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Solution

The fourth proportional to 544,976.80, 817,465.20 and 412,266.40 is: 618,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,976.80 : 817,465.20 = 412,266.40 : x
  2. Step 2: Convert to fraction form
    544,976.80/817,465.20 = 412,266.40/x
  3. Step 3: Cross multiply
    544,976.80x = 817,465.20 × 412,266.40
  4. Step 4: Simplify right side
    544,976.80x = 337,013,435,129.28
  5. Step 5: Solve for x
    x = 337,013,435,129.28/544,976.80
  6. Step 6: Final answer
    x = 618,399.60

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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.