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Finding the Fourth Proportional to 354,586.60, 531,005.10 and 235,613.80

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Solution

The fourth proportional to 354,586.60, 531,005.10 and 235,613.80 is: 352,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,586.60 : 531,005.10 = 235,613.80 : x
  2. Step 2: Convert to fraction form
    354,586.60/531,005.10 = 235,613.80/x
  3. Step 3: Cross multiply
    354,586.60x = 531,005.10 × 235,613.80
  4. Step 4: Simplify right side
    354,586.60x = 125,112,129,430.38
  5. Step 5: Solve for x
    x = 125,112,129,430.38/354,586.60
  6. Step 6: Final answer
    x = 352,839.42

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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.