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Finding the Fourth Proportional to 4,967,780.64, 7,454,562.96 and 2,088,939.36

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Solution

The fourth proportional to 4,967,780.64, 7,454,562.96 and 2,088,939.36 is: 3,134,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,967,780.64 : 7,454,562.96 = 2,088,939.36 : x
  2. Step 2: Convert to fraction form
    4,967,780.64/7,454,562.96 = 2,088,939.36/x
  3. Step 3: Cross multiply
    4,967,780.64x = 7,454,562.96 × 2,088,939.36
  4. Step 4: Simplify right side
    4,967,780.64x = 15,572,129,978,742.11
  5. Step 5: Solve for x
    x = 15,572,129,978,742.11/4,967,780.64
  6. Step 6: Final answer
    x = 3,134,625.12

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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.