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Finding the Fourth Proportional to 365,821.70, 551,474.45 and 341,436.65

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Solution

The fourth proportional to 365,821.70, 551,474.45 and 341,436.65 is: 514,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,821.70 : 551,474.45 = 341,436.65 : x
  2. Step 2: Convert to fraction form
    365,821.70/551,474.45 = 341,436.65/x
  3. Step 3: Cross multiply
    365,821.70x = 551,474.45 × 341,436.65
  4. Step 4: Simplify right side
    365,821.70x = 188,293,588,768.59
  5. Step 5: Solve for x
    x = 188,293,588,768.59/365,821.70
  6. Step 6: Final answer
    x = 514,714.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.