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Finding the Fourth Proportional to 408,035.60, 611,632.20 and 183,503.60

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Solution

The fourth proportional to 408,035.60, 611,632.20 and 183,503.60 is: 275,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,035.60 : 611,632.20 = 183,503.60 : x
  2. Step 2: Convert to fraction form
    408,035.60/611,632.20 = 183,503.60/x
  3. Step 3: Cross multiply
    408,035.60x = 611,632.20 × 183,503.60
  4. Step 4: Simplify right side
    408,035.60x = 112,236,710,575.92
  5. Step 5: Solve for x
    x = 112,236,710,575.92/408,035.60
  6. Step 6: Final answer
    x = 275,065.98

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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.