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Finding the Fourth Proportional to 551,604.10, 827,406.15 and 492,117.70

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Solution

The fourth proportional to 551,604.10, 827,406.15 and 492,117.70 is: 738,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,604.10 : 827,406.15 = 492,117.70 : x
  2. Step 2: Convert to fraction form
    551,604.10/827,406.15 = 492,117.70/x
  3. Step 3: Cross multiply
    551,604.10x = 827,406.15 × 492,117.70
  4. Step 4: Simplify right side
    551,604.10x = 407,181,211,503.86
  5. Step 5: Solve for x
    x = 407,181,211,503.86/551,604.10
  6. Step 6: Final answer
    x = 738,176.55

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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.