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Finding the Fourth Proportional to 6,357,776.28, 8,796,835.20 and 5,543,676.40

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Solution

The fourth proportional to 6,357,776.28, 8,796,835.20 and 5,543,676.40 is: 7,670,418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,357,776.28 : 8,796,835.20 = 5,543,676.40 : x
  2. Step 2: Convert to fraction form
    6,357,776.28/8,796,835.20 = 5,543,676.40/x
  3. Step 3: Cross multiply
    6,357,776.28x = 8,796,835.20 × 5,543,676.40
  4. Step 4: Simplify right side
    6,357,776.28x = 48,766,807,692,929.28
  5. Step 5: Solve for x
    x = 48,766,807,692,929.28/6,357,776.28
  6. Step 6: Final answer
    x = 7,670,418.96

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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.