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Finding the Fourth Proportional to 397,348.80, 596,023.20 and 346,027.20

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Solution

The fourth proportional to 397,348.80, 596,023.20 and 346,027.20 is: 519,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,348.80 : 596,023.20 = 346,027.20 : x
  2. Step 2: Convert to fraction form
    397,348.80/596,023.20 = 346,027.20/x
  3. Step 3: Cross multiply
    397,348.80x = 596,023.20 × 346,027.20
  4. Step 4: Simplify right side
    397,348.80x = 206,240,239,031.04
  5. Step 5: Solve for x
    x = 206,240,239,031.04/397,348.80
  6. Step 6: Final answer
    x = 519,040.80

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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.