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Finding the Fourth Proportional to 988,676.70, 1,483,015.05 and 736,734.30

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Solution

The fourth proportional to 988,676.70, 1,483,015.05 and 736,734.30 is: 1,105,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,676.70 : 1,483,015.05 = 736,734.30 : x
  2. Step 2: Convert to fraction form
    988,676.70/1,483,015.05 = 736,734.30/x
  3. Step 3: Cross multiply
    988,676.70x = 1,483,015.05 × 736,734.30
  4. Step 4: Simplify right side
    988,676.70x = 1,092,588,054,751.22
  5. Step 5: Solve for x
    x = 1,092,588,054,751.22/988,676.70
  6. Step 6: Final answer
    x = 1,105,101.45

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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.