Home / 627,858.20-941,787.30-312,930.20

Finding the Fourth Proportional to 627,858.20, 941,787.30 and 312,930.20

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Solution

The fourth proportional to 627,858.20, 941,787.30 and 312,930.20 is: 469,395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,858.20 : 941,787.30 = 312,930.20 : x
  2. Step 2: Convert to fraction form
    627,858.20/941,787.30 = 312,930.20/x
  3. Step 3: Cross multiply
    627,858.20x = 941,787.30 × 312,930.20
  4. Step 4: Simplify right side
    627,858.20x = 294,713,688,146.46
  5. Step 5: Solve for x
    x = 294,713,688,146.46/627,858.20
  6. Step 6: Final answer
    x = 469,395.30

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Double scale
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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.