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Finding the Fourth Proportional to 551,231.20, 826,409.40 and 301,913.20

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Solution

The fourth proportional to 551,231.20, 826,409.40 and 301,913.20 is: 452,630.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,231.20 : 826,409.40 = 301,913.20 : x
  2. Step 2: Convert to fraction form
    551,231.20/826,409.40 = 301,913.20/x
  3. Step 3: Cross multiply
    551,231.20x = 826,409.40 × 301,913.20
  4. Step 4: Simplify right side
    551,231.20x = 249,503,906,464.08
  5. Step 5: Solve for x
    x = 249,503,906,464.08/551,231.20
  6. Step 6: Final answer
    x = 452,630.23

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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.