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Finding the Fourth Proportional to 397,343.80, 596,015.70 and 346,022.20

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Solution

The fourth proportional to 397,343.80, 596,015.70 and 346,022.20 is: 519,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,343.80 : 596,015.70 = 346,022.20 : x
  2. Step 2: Convert to fraction form
    397,343.80/596,015.70 = 346,022.20/x
  3. Step 3: Cross multiply
    397,343.80x = 596,015.70 × 346,022.20
  4. Step 4: Simplify right side
    397,343.80x = 206,234,663,748.54
  5. Step 5: Solve for x
    x = 206,234,663,748.54/397,343.80
  6. Step 6: Final answer
    x = 519,033.30

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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.