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Finding the Fourth Proportional to 3,478,505.70, 4,859,954.70 and 3,478,505.70

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Solution

The fourth proportional to 3,478,505.70, 4,859,954.70 and 3,478,505.70 is: 4,859,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,505.70 : 4,859,954.70 = 3,478,505.70 : x
  2. Step 2: Convert to fraction form
    3,478,505.70/4,859,954.70 = 3,478,505.70/x
  3. Step 3: Cross multiply
    3,478,505.70x = 4,859,954.70 × 3,478,505.70
  4. Step 4: Simplify right side
    3,478,505.70x = 16,905,380,125,691.79
  5. Step 5: Solve for x
    x = 16,905,380,125,691.79/3,478,505.70
  6. Step 6: Final answer
    x = 4,859,954.70

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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.