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Finding the Fourth Proportional to 5,217,395.85, 7,826,630.64 and 1,805,676.48

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Solution

The fourth proportional to 5,217,395.85, 7,826,630.64 and 1,805,676.48 is: 2,708,700.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217,395.85 : 7,826,630.64 = 1,805,676.48 : x
  2. Step 2: Convert to fraction form
    5,217,395.85/7,826,630.64 = 1,805,676.48/x
  3. Step 3: Cross multiply
    5,217,395.85x = 7,826,630.64 × 1,805,676.48
  4. Step 4: Simplify right side
    5,217,395.85x = 14,132,362,864,295.35
  5. Step 5: Solve for x
    x = 14,132,362,864,295.35/5,217,395.85
  6. Step 6: Final answer
    x = 2,708,700.52

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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.