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Finding the Fourth Proportional to 800,264.80, 1,197,772.80 and 621,805.60

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Solution

The fourth proportional to 800,264.80, 1,197,772.80 and 621,805.60 is: 930,669.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,264.80 : 1,197,772.80 = 621,805.60 : x
  2. Step 2: Convert to fraction form
    800,264.80/1,197,772.80 = 621,805.60/x
  3. Step 3: Cross multiply
    800,264.80x = 1,197,772.80 × 621,805.60
  4. Step 4: Simplify right side
    800,264.80x = 744,781,834,567.68
  5. Step 5: Solve for x
    x = 744,781,834,567.68/800,264.80
  6. Step 6: Final answer
    x = 930,669.24

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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.