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Finding the Fourth Proportional to 6,243,639.60, 9,365,718.60 and 1,983,687.60

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Solution

The fourth proportional to 6,243,639.60, 9,365,718.60 and 1,983,687.60 is: 2,975,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243,639.60 : 9,365,718.60 = 1,983,687.60 : x
  2. Step 2: Convert to fraction form
    6,243,639.60/9,365,718.60 = 1,983,687.60/x
  3. Step 3: Cross multiply
    6,243,639.60x = 9,365,718.60 × 1,983,687.60
  4. Step 4: Simplify right side
    6,243,639.60x = 18,578,659,851,909.36
  5. Step 5: Solve for x
    x = 18,578,659,851,909.36/6,243,639.60
  6. Step 6: Final answer
    x = 2,975,613.75

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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.