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Finding the Fourth Proportional to 617,317.20, 925,538.40 and 238,091.40

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Solution

The fourth proportional to 617,317.20, 925,538.40 and 238,091.40 is: 356,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,317.20 : 925,538.40 = 238,091.40 : x
  2. Step 2: Convert to fraction form
    617,317.20/925,538.40 = 238,091.40/x
  3. Step 3: Cross multiply
    617,317.20x = 925,538.40 × 238,091.40
  4. Step 4: Simplify right side
    617,317.20x = 220,362,733,409.76
  5. Step 5: Solve for x
    x = 220,362,733,409.76/617,317.20
  6. Step 6: Final answer
    x = 356,968.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.