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Finding the Fourth Proportional to 296,923.80, 445,385.70 and 247,060.20

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Solution

The fourth proportional to 296,923.80, 445,385.70 and 247,060.20 is: 370,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,923.80 : 445,385.70 = 247,060.20 : x
  2. Step 2: Convert to fraction form
    296,923.80/445,385.70 = 247,060.20/x
  3. Step 3: Cross multiply
    296,923.80x = 445,385.70 × 247,060.20
  4. Step 4: Simplify right side
    296,923.80x = 110,037,080,119.14
  5. Step 5: Solve for x
    x = 110,037,080,119.14/296,923.80
  6. Step 6: Final answer
    x = 370,590.30

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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.