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Finding the Fourth Proportional to 384,066.40, 576,358.80 and 250,621.60

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Solution

The fourth proportional to 384,066.40, 576,358.80 and 250,621.60 is: 376,101.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,066.40 : 576,358.80 = 250,621.60 : x
  2. Step 2: Convert to fraction form
    384,066.40/576,358.80 = 250,621.60/x
  3. Step 3: Cross multiply
    384,066.40x = 576,358.80 × 250,621.60
  4. Step 4: Simplify right side
    384,066.40x = 144,447,964,630.08
  5. Step 5: Solve for x
    x = 144,447,964,630.08/384,066.40
  6. Step 6: Final answer
    x = 376,101.54

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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.