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Finding the Fourth Proportional to 641,681.46, 885,599.56 and 366,107.16

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Solution

The fourth proportional to 641,681.46, 885,599.56 and 366,107.16 is: 505,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,681.46 : 885,599.56 = 366,107.16 : x
  2. Step 2: Convert to fraction form
    641,681.46/885,599.56 = 366,107.16/x
  3. Step 3: Cross multiply
    641,681.46x = 885,599.56 × 366,107.16
  4. Step 4: Simplify right side
    641,681.46x = 324,224,339,808.85
  5. Step 5: Solve for x
    x = 324,224,339,808.85/641,681.46
  6. Step 6: Final answer
    x = 505,273.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.