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Finding the Fourth Proportional to 393,759.71, 543,098.31 and 296,967.60

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Solution

The fourth proportional to 393,759.71, 543,098.31 and 296,967.60 is: 409,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,759.71 : 543,098.31 = 296,967.60 : x
  2. Step 2: Convert to fraction form
    393,759.71/543,098.31 = 296,967.60/x
  3. Step 3: Cross multiply
    393,759.71x = 543,098.31 × 296,967.60
  4. Step 4: Simplify right side
    393,759.71x = 161,282,601,684.76
  5. Step 5: Solve for x
    x = 161,282,601,684.76/393,759.71
  6. Step 6: Final answer
    x = 409,596.51

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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.