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Finding the Fourth Proportional to 659,044.22, 909,520.24 and 372,590.96

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Solution

The fourth proportional to 659,044.22, 909,520.24 and 372,590.96 is: 514,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,044.22 : 909,520.24 = 372,590.96 : x
  2. Step 2: Convert to fraction form
    659,044.22/909,520.24 = 372,590.96/x
  3. Step 3: Cross multiply
    659,044.22x = 909,520.24 × 372,590.96
  4. Step 4: Simplify right side
    659,044.22x = 338,879,019,361.03
  5. Step 5: Solve for x
    x = 338,879,019,361.03/659,044.22
  6. Step 6: Final answer
    x = 514,197.70

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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.