Home / 906,787.76-1,251,367.04-498,880.83

Finding the Fourth Proportional to 906,787.76, 1,251,367.04 and 498,880.83

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Solution

The fourth proportional to 906,787.76, 1,251,367.04 and 498,880.83 is: 688,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,787.76 : 1,251,367.04 = 498,880.83 : x
  2. Step 2: Convert to fraction form
    906,787.76/1,251,367.04 = 498,880.83/x
  3. Step 3: Cross multiply
    906,787.76x = 1,251,367.04 × 498,880.83
  4. Step 4: Simplify right side
    906,787.76x = 624,283,025,055.44
  5. Step 5: Solve for x
    x = 624,283,025,055.44/906,787.76
  6. Step 6: Final answer
    x = 688,455.51

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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.