Home / 677,845.40-1,016,768.10-257,066.60

Finding the Fourth Proportional to 677,845.40, 1,016,768.10 and 257,066.60

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Solution

The fourth proportional to 677,845.40, 1,016,768.10 and 257,066.60 is: 385,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,845.40 : 1,016,768.10 = 257,066.60 : x
  2. Step 2: Convert to fraction form
    677,845.40/1,016,768.10 = 257,066.60/x
  3. Step 3: Cross multiply
    677,845.40x = 1,016,768.10 × 257,066.60
  4. Step 4: Simplify right side
    677,845.40x = 261,377,118,455.46
  5. Step 5: Solve for x
    x = 261,377,118,455.46/677,845.40
  6. Step 6: Final answer
    x = 385,599.90

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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.