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Finding the Fourth Proportional to 411,955.90, 617,933.85 and 411,955.90

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Solution

The fourth proportional to 411,955.90, 617,933.85 and 411,955.90 is: 617,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,955.90 : 617,933.85 = 411,955.90 : x
  2. Step 2: Convert to fraction form
    411,955.90/617,933.85 = 411,955.90/x
  3. Step 3: Cross multiply
    411,955.90x = 617,933.85 × 411,955.90
  4. Step 4: Simplify right side
    411,955.90x = 254,561,495,317.22
  5. Step 5: Solve for x
    x = 254,561,495,317.22/411,955.90
  6. Step 6: Final answer
    x = 617,933.85

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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.