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Finding the Fourth Proportional to 551,797.20, 827,258.40 and 302,479.20

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Solution

The fourth proportional to 551,797.20, 827,258.40 and 302,479.20 is: 453,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,797.20 : 827,258.40 = 302,479.20 : x
  2. Step 2: Convert to fraction form
    551,797.20/827,258.40 = 302,479.20/x
  3. Step 3: Cross multiply
    551,797.20x = 827,258.40 × 302,479.20
  4. Step 4: Simplify right side
    551,797.20x = 250,228,459,025.28
  5. Step 5: Solve for x
    x = 250,228,459,025.28/551,797.20
  6. Step 6: Final answer
    x = 453,479.03

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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.