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Finding the Fourth Proportional to 633,718.56, 874,531.50 and 347,249.40

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Solution

The fourth proportional to 633,718.56, 874,531.50 and 347,249.40 is: 479,204.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,718.56 : 874,531.50 = 347,249.40 : x
  2. Step 2: Convert to fraction form
    633,718.56/874,531.50 = 347,249.40/x
  3. Step 3: Cross multiply
    633,718.56x = 874,531.50 × 347,249.40
  4. Step 4: Simplify right side
    633,718.56x = 303,680,538,656.10
  5. Step 5: Solve for x
    x = 303,680,538,656.10/633,718.56
  6. Step 6: Final answer
    x = 479,204.11

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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.