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Finding the Fourth Proportional to 3,670,495.80, 5,505,743.70 and 974,815.80

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Solution

The fourth proportional to 3,670,495.80, 5,505,743.70 and 974,815.80 is: 1,462,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670,495.80 : 5,505,743.70 = 974,815.80 : x
  2. Step 2: Convert to fraction form
    3,670,495.80/5,505,743.70 = 974,815.80/x
  3. Step 3: Cross multiply
    3,670,495.80x = 5,505,743.70 × 974,815.80
  4. Step 4: Simplify right side
    3,670,495.80x = 5,367,085,949,510.46
  5. Step 5: Solve for x
    x = 5,367,085,949,510.46/3,670,495.80
  6. Step 6: Final answer
    x = 1,462,223.70

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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.