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Finding the Fourth Proportional to 617,915.16, 852,652.44 and 345,945.24

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Solution

The fourth proportional to 617,915.16, 852,652.44 and 345,945.24 is: 477,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,915.16 : 852,652.44 = 345,945.24 : x
  2. Step 2: Convert to fraction form
    617,915.16/852,652.44 = 345,945.24/x
  3. Step 3: Cross multiply
    617,915.16x = 852,652.44 × 345,945.24
  4. Step 4: Simplify right side
    617,915.16x = 294,971,052,992.39
  5. Step 5: Solve for x
    x = 294,971,052,992.39/617,915.16
  6. Step 6: Final answer
    x = 477,364.97

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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.