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Finding the Fourth Proportional to 426,861.50, 589,060.65 and 235,870.76

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Solution

The fourth proportional to 426,861.50, 589,060.65 and 235,870.76 is: 325,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,861.50 : 589,060.65 = 235,870.76 : x
  2. Step 2: Convert to fraction form
    426,861.50/589,060.65 = 235,870.76/x
  3. Step 3: Cross multiply
    426,861.50x = 589,060.65 × 235,870.76
  4. Step 4: Simplify right side
    426,861.50x = 138,942,183,201.59
  5. Step 5: Solve for x
    x = 138,942,183,201.59/426,861.50
  6. Step 6: Final answer
    x = 325,497.11

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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.