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Finding the Fourth Proportional to 437,611.60, 656,417.40 and 248,654.80

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Solution

The fourth proportional to 437,611.60, 656,417.40 and 248,654.80 is: 372,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,611.60 : 656,417.40 = 248,654.80 : x
  2. Step 2: Convert to fraction form
    437,611.60/656,417.40 = 248,654.80/x
  3. Step 3: Cross multiply
    437,611.60x = 656,417.40 × 248,654.80
  4. Step 4: Simplify right side
    437,611.60x = 163,221,337,313.52
  5. Step 5: Solve for x
    x = 163,221,337,313.52/437,611.60
  6. Step 6: Final answer
    x = 372,982.20

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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.