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Finding the Fourth Proportional to 393,510.42, 590,320.62 and 193,832.46

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Solution

The fourth proportional to 393,510.42, 590,320.62 and 193,832.46 is: 290,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,510.42 : 590,320.62 = 193,832.46 : x
  2. Step 2: Convert to fraction form
    393,510.42/590,320.62 = 193,832.46/x
  3. Step 3: Cross multiply
    393,510.42x = 590,320.62 × 193,832.46
  4. Step 4: Simplify right side
    393,510.42x = 114,423,297,963.33
  5. Step 5: Solve for x
    x = 114,423,297,963.33/393,510.42
  6. Step 6: Final answer
    x = 290,775.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.