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Finding the Fourth Proportional to 434,582.60, 651,906.30 and 154,063.40

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Solution

The fourth proportional to 434,582.60, 651,906.30 and 154,063.40 is: 231,106.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,582.60 : 651,906.30 = 154,063.40 : x
  2. Step 2: Convert to fraction form
    434,582.60/651,906.30 = 154,063.40/x
  3. Step 3: Cross multiply
    434,582.60x = 651,906.30 × 154,063.40
  4. Step 4: Simplify right side
    434,582.60x = 100,434,901,059.42
  5. Step 5: Solve for x
    x = 100,434,901,059.42/434,582.60
  6. Step 6: Final answer
    x = 231,106.59

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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.