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Finding the Fourth Proportional to 274,321.65, 384,312.75 and 274,321.65

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Solution

The fourth proportional to 274,321.65, 384,312.75 and 274,321.65 is: 384,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,321.65 : 384,312.75 = 274,321.65 : x
  2. Step 2: Convert to fraction form
    274,321.65/384,312.75 = 274,321.65/x
  3. Step 3: Cross multiply
    274,321.65x = 384,312.75 × 274,321.65
  4. Step 4: Simplify right side
    274,321.65x = 105,425,307,696.04
  5. Step 5: Solve for x
    x = 105,425,307,696.04/274,321.65
  6. Step 6: Final answer
    x = 384,312.75

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1.5x scale

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.