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Finding the Fourth Proportional to 274,326.90, 384,320.10 and 274,326.90

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Solution

The fourth proportional to 274,326.90, 384,320.10 and 274,326.90 is: 384,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,326.90 : 384,320.10 = 274,326.90 : x
  2. Step 2: Convert to fraction form
    274,326.90/384,320.10 = 274,326.90/x
  3. Step 3: Cross multiply
    274,326.90x = 384,320.10 × 274,326.90
  4. Step 4: Simplify right side
    274,326.90x = 105,429,341,640.69
  5. Step 5: Solve for x
    x = 105,429,341,640.69/274,326.90
  6. Step 6: Final answer
    x = 384,320.10

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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.