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Finding the Fourth Proportional to 700,913.76, 967,260.72 and 378,623.88

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Solution

The fourth proportional to 700,913.76, 967,260.72 and 378,623.88 is: 522,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,913.76 : 967,260.72 = 378,623.88 : x
  2. Step 2: Convert to fraction form
    700,913.76/967,260.72 = 378,623.88/x
  3. Step 3: Cross multiply
    700,913.76x = 967,260.72 × 378,623.88
  4. Step 4: Simplify right side
    700,913.76x = 366,228,006,777.99
  5. Step 5: Solve for x
    x = 366,228,006,777.99/700,913.76
  6. Step 6: Final answer
    x = 522,500.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.