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Finding the Fourth Proportional to 1,260,806.16, 1,739,904.24 and 716,942.04

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Solution

The fourth proportional to 1,260,806.16, 1,739,904.24 and 716,942.04 is: 989,375.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,806.16 : 1,739,904.24 = 716,942.04 : x
  2. Step 2: Convert to fraction form
    1,260,806.16/1,739,904.24 = 716,942.04/x
  3. Step 3: Cross multiply
    1,260,806.16x = 1,739,904.24 × 716,942.04
  4. Step 4: Simplify right side
    1,260,806.16x = 1,247,410,495,230.25
  5. Step 5: Solve for x
    x = 1,247,410,495,230.25/1,260,806.16
  6. Step 6: Final answer
    x = 989,375.32

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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.