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Finding the Fourth Proportional to 1,245,329.70, 1,865,042.10 and 1,245,329.70

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Solution

The fourth proportional to 1,245,329.70, 1,865,042.10 and 1,245,329.70 is: 1,865,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,329.70 : 1,865,042.10 = 1,245,329.70 : x
  2. Step 2: Convert to fraction form
    1,245,329.70/1,865,042.10 = 1,245,329.70/x
  3. Step 3: Cross multiply
    1,245,329.70x = 1,865,042.10 × 1,245,329.70
  4. Step 4: Simplify right side
    1,245,329.70x = 2,322,592,318,880.37
  5. Step 5: Solve for x
    x = 2,322,592,318,880.37/1,245,329.70
  6. Step 6: Final answer
    x = 1,865,042.10

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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.