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Finding the Fourth Proportional to 274,317.90, 384,307.50 and 274,317.90

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Solution

The fourth proportional to 274,317.90, 384,307.50 and 274,317.90 is: 384,307.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,317.90 : 384,307.50 = 274,317.90 : x
  2. Step 2: Convert to fraction form
    274,317.90/384,307.50 = 274,317.90/x
  3. Step 3: Cross multiply
    274,317.90x = 384,307.50 × 274,317.90
  4. Step 4: Simplify right side
    274,317.90x = 105,422,426,354.25
  5. Step 5: Solve for x
    x = 105,422,426,354.25/274,317.90
  6. Step 6: Final answer
    x = 384,307.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.