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Finding the Fourth Proportional to 6,395,700.78, 8,826,182.55 and 3,495,213.90

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Solution

The fourth proportional to 6,395,700.78, 8,826,182.55 and 3,495,213.90 is: 4,823,458.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,395,700.78 : 8,826,182.55 = 3,495,213.90 : x
  2. Step 2: Convert to fraction form
    6,395,700.78/8,826,182.55 = 3,495,213.90/x
  3. Step 3: Cross multiply
    6,395,700.78x = 8,826,182.55 × 3,495,213.90
  4. Step 4: Simplify right side
    6,395,700.78x = 30,849,395,932,697.45
  5. Step 5: Solve for x
    x = 30,849,395,932,697.45/6,395,700.78
  6. Step 6: Final answer
    x = 4,823,458.29

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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.