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Finding the Fourth Proportional to 3,669,994.70, 5,148,621.40 and 3,669,994.70

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Solution

The fourth proportional to 3,669,994.70, 5,148,621.40 and 3,669,994.70 is: 5,148,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,994.70 : 5,148,621.40 = 3,669,994.70 : x
  2. Step 2: Convert to fraction form
    3,669,994.70/5,148,621.40 = 3,669,994.70/x
  3. Step 3: Cross multiply
    3,669,994.70x = 5,148,621.40 × 3,669,994.70
  4. Step 4: Simplify right side
    3,669,994.70x = 18,895,413,250,306.58
  5. Step 5: Solve for x
    x = 18,895,413,250,306.58/3,669,994.70
  6. Step 6: Final answer
    x = 5,148,621.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.