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Finding the Fourth Proportional to 336,993,438.70, 505,490,158.05 and 336,993,438.70

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Solution

The fourth proportional to 336,993,438.70, 505,490,158.05 and 336,993,438.70 is: 505,490,158.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,993,438.70 : 505,490,158.05 = 336,993,438.70 : x
  2. Step 2: Convert to fraction form
    336,993,438.70/505,490,158.05 = 336,993,438.70/x
  3. Step 3: Cross multiply
    336,993,438.70x = 505,490,158.05 × 336,993,438.70
  4. Step 4: Simplify right side
    336,993,438.70x = 170,346,866,590,276,000
  5. Step 5: Solve for x
    x = 170,346,866,590,276,000/336,993,438.70
  6. Step 6: Final answer
    x = 505,490,158.05

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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.