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Finding the Fourth Proportional to 627,872.80, 941,809.20 and 579,949.60

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Solution

The fourth proportional to 627,872.80, 941,809.20 and 579,949.60 is: 869,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,872.80 : 941,809.20 = 579,949.60 : x
  2. Step 2: Convert to fraction form
    627,872.80/941,809.20 = 579,949.60/x
  3. Step 3: Cross multiply
    627,872.80x = 941,809.20 × 579,949.60
  4. Step 4: Simplify right side
    627,872.80x = 546,201,868,816.32
  5. Step 5: Solve for x
    x = 546,201,868,816.32/627,872.80
  6. Step 6: Final answer
    x = 869,924.40

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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.