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Finding the Fourth Proportional to 511,183.98, 705,554.01 and 317,737.62

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Solution

The fourth proportional to 511,183.98, 705,554.01 and 317,737.62 is: 438,552.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,183.98 : 705,554.01 = 317,737.62 : x
  2. Step 2: Convert to fraction form
    511,183.98/705,554.01 = 317,737.62/x
  3. Step 3: Cross multiply
    511,183.98x = 705,554.01 × 317,737.62
  4. Step 4: Simplify right side
    511,183.98x = 224,181,051,918.86
  5. Step 5: Solve for x
    x = 224,181,051,918.86/511,183.98
  6. Step 6: Final answer
    x = 438,552.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.