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Finding the Fourth Proportional to 551,603.10, 827,404.65 and 492,116.70

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Solution

The fourth proportional to 551,603.10, 827,404.65 and 492,116.70 is: 738,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,603.10 : 827,404.65 = 492,116.70 : x
  2. Step 2: Convert to fraction form
    551,603.10/827,404.65 = 492,116.70/x
  3. Step 3: Cross multiply
    551,603.10x = 827,404.65 × 492,116.70
  4. Step 4: Simplify right side
    551,603.10x = 407,179,645,922.66
  5. Step 5: Solve for x
    x = 407,179,645,922.66/551,603.10
  6. Step 6: Final answer
    x = 738,175.05

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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.