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Finding the Fourth Proportional to 627,902.52, 866,826.54 and 484,340.28

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Solution

The fourth proportional to 627,902.52, 866,826.54 and 484,340.28 is: 668,637.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,902.52 : 866,826.54 = 484,340.28 : x
  2. Step 2: Convert to fraction form
    627,902.52/866,826.54 = 484,340.28/x
  3. Step 3: Cross multiply
    627,902.52x = 866,826.54 × 484,340.28
  4. Step 4: Simplify right side
    627,902.52x = 419,839,009,095.03
  5. Step 5: Solve for x
    x = 419,839,009,095.03/627,902.52
  6. Step 6: Final answer
    x = 668,637.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.