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Finding the Fourth Proportional to 633,933.74, 874,553.66 and 419,372.64

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Solution

The fourth proportional to 633,933.74, 874,553.66 and 419,372.64 is: 578,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,933.74 : 874,553.66 = 419,372.64 : x
  2. Step 2: Convert to fraction form
    633,933.74/874,553.66 = 419,372.64/x
  3. Step 3: Cross multiply
    633,933.74x = 874,553.66 × 419,372.64
  4. Step 4: Simplify right side
    633,933.74x = 366,763,876,691.65
  5. Step 5: Solve for x
    x = 366,763,876,691.65/633,933.74
  6. Step 6: Final answer
    x = 578,552.38

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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.