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Finding the Fourth Proportional to 551,140.80, 825,328.80 and 363,134.40

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Solution

The fourth proportional to 551,140.80, 825,328.80 and 363,134.40 is: 543,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,140.80 : 825,328.80 = 363,134.40 : x
  2. Step 2: Convert to fraction form
    551,140.80/825,328.80 = 363,134.40/x
  3. Step 3: Cross multiply
    551,140.80x = 825,328.80 × 363,134.40
  4. Step 4: Simplify right side
    551,140.80x = 299,705,278,590.72
  5. Step 5: Solve for x
    x = 299,705,278,590.72/551,140.80
  6. Step 6: Final answer
    x = 543,790.77

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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.