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Finding the Fourth Proportional to 551,969.20, 827,953.80 and 363,012.40

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Solution

The fourth proportional to 551,969.20, 827,953.80 and 363,012.40 is: 544,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,969.20 : 827,953.80 = 363,012.40 : x
  2. Step 2: Convert to fraction form
    551,969.20/827,953.80 = 363,012.40/x
  3. Step 3: Cross multiply
    551,969.20x = 827,953.80 × 363,012.40
  4. Step 4: Simplify right side
    551,969.20x = 300,557,496,027.12
  5. Step 5: Solve for x
    x = 300,557,496,027.12/551,969.20
  6. Step 6: Final answer
    x = 544,518.60

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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.