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Finding the Fourth Proportional to 627,876.80, 941,815.20 and 579,953.60

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Solution

The fourth proportional to 627,876.80, 941,815.20 and 579,953.60 is: 869,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,876.80 : 941,815.20 = 579,953.60 : x
  2. Step 2: Convert to fraction form
    627,876.80/941,815.20 = 579,953.60/x
  3. Step 3: Cross multiply
    627,876.80x = 941,815.20 × 579,953.60
  4. Step 4: Simplify right side
    627,876.80x = 546,209,115,774.72
  5. Step 5: Solve for x
    x = 546,209,115,774.72/627,876.80
  6. Step 6: Final answer
    x = 869,930.40

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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.