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Finding the Fourth Proportional to 544,638.40, 816,957.60 and 278,310.40

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Solution

The fourth proportional to 544,638.40, 816,957.60 and 278,310.40 is: 417,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,638.40 : 816,957.60 = 278,310.40 : x
  2. Step 2: Convert to fraction form
    544,638.40/816,957.60 = 278,310.40/x
  3. Step 3: Cross multiply
    544,638.40x = 816,957.60 × 278,310.40
  4. Step 4: Simplify right side
    544,638.40x = 227,367,796,439.04
  5. Step 5: Solve for x
    x = 227,367,796,439.04/544,638.40
  6. Step 6: Final answer
    x = 417,465.60

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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.