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Finding the Fourth Proportional to 492,323.64, 679,146.24 and 339,098.30

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Solution

The fourth proportional to 492,323.64, 679,146.24 and 339,098.30 is: 467,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,323.64 : 679,146.24 = 339,098.30 : x
  2. Step 2: Convert to fraction form
    492,323.64/679,146.24 = 339,098.30/x
  3. Step 3: Cross multiply
    492,323.64x = 679,146.24 × 339,098.30
  4. Step 4: Simplify right side
    492,323.64x = 230,297,332,039.66
  5. Step 5: Solve for x
    x = 230,297,332,039.66/492,323.64
  6. Step 6: Final answer
    x = 467,776.30

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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.