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Finding the Fourth Proportional to 394,447.80, 592,196.58 and 207,590.52

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Solution

The fourth proportional to 394,447.80, 592,196.58 and 207,590.52 is: 311,662.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,447.80 : 592,196.58 = 207,590.52 : x
  2. Step 2: Convert to fraction form
    394,447.80/592,196.58 = 207,590.52/x
  3. Step 3: Cross multiply
    394,447.80x = 592,196.58 × 207,590.52
  4. Step 4: Simplify right side
    394,447.80x = 122,934,395,984.42
  5. Step 5: Solve for x
    x = 122,934,395,984.42/394,447.80
  6. Step 6: Final answer
    x = 311,662.01

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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.