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Finding the Fourth Proportional to 633,997.81, 874,952.81 and 376,027.49

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Solution

The fourth proportional to 633,997.81, 874,952.81 and 376,027.49 is: 518,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,997.81 : 874,952.81 = 376,027.49 : x
  2. Step 2: Convert to fraction form
    633,997.81/874,952.81 = 376,027.49/x
  3. Step 3: Cross multiply
    633,997.81x = 874,952.81 × 376,027.49
  4. Step 4: Simplify right side
    633,997.81x = 329,006,309,012.75
  5. Step 5: Solve for x
    x = 329,006,309,012.75/633,997.81
  6. Step 6: Final answer
    x = 518,939.19

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Double scale
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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.