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Finding the Fourth Proportional to 586,409.92, 878,015.07 and 443,823.90

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Solution

The fourth proportional to 586,409.92, 878,015.07 and 443,823.90 is: 664,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,409.92 : 878,015.07 = 443,823.90 : x
  2. Step 2: Convert to fraction form
    586,409.92/878,015.07 = 443,823.90/x
  3. Step 3: Cross multiply
    586,409.92x = 878,015.07 × 443,823.90
  4. Step 4: Simplify right side
    586,409.92x = 389,684,072,626.17
  5. Step 5: Solve for x
    x = 389,684,072,626.17/586,409.92
  6. Step 6: Final answer
    x = 664,525.04

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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.