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Finding the Fourth Proportional to 4,928,579.70, 7,392,869.55 and 4,928,579.70

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Solution

The fourth proportional to 4,928,579.70, 7,392,869.55 and 4,928,579.70 is: 7,392,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928,579.70 : 7,392,869.55 = 4,928,579.70 : x
  2. Step 2: Convert to fraction form
    4,928,579.70/7,392,869.55 = 4,928,579.70/x
  3. Step 3: Cross multiply
    4,928,579.70x = 7,392,869.55 × 4,928,579.70
  4. Step 4: Simplify right side
    4,928,579.70x = 36,436,346,788,878.13
  5. Step 5: Solve for x
    x = 36,436,346,788,878.13/4,928,579.70
  6. Step 6: Final answer
    x = 7,392,869.55

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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.