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Finding the Fourth Proportional to 1,968,361.80, 2,952,542.70 and 1,492,470.60

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Solution

The fourth proportional to 1,968,361.80, 2,952,542.70 and 1,492,470.60 is: 2,238,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,361.80 : 2,952,542.70 = 1,492,470.60 : x
  2. Step 2: Convert to fraction form
    1,968,361.80/2,952,542.70 = 1,492,470.60/x
  3. Step 3: Cross multiply
    1,968,361.80x = 2,952,542.70 × 1,492,470.60
  4. Step 4: Simplify right side
    1,968,361.80x = 4,406,583,174,994.62
  5. Step 5: Solve for x
    x = 4,406,583,174,994.62/1,968,361.80
  6. Step 6: Final answer
    x = 2,238,705.90

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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.