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Finding the Fourth Proportional to 1,983,643.44, 2,975,662.32 and 786,392.16

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Solution

The fourth proportional to 1,983,643.44, 2,975,662.32 and 786,392.16 is: 1,179,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983,643.44 : 2,975,662.32 = 786,392.16 : x
  2. Step 2: Convert to fraction form
    1,983,643.44/2,975,662.32 = 786,392.16/x
  3. Step 3: Cross multiply
    1,983,643.44x = 2,975,662.32 × 786,392.16
  4. Step 4: Simplify right side
    1,983,643.44x = 2,340,037,519,255.41
  5. Step 5: Solve for x
    x = 2,340,037,519,255.41/1,983,643.44
  6. Step 6: Final answer
    x = 1,179,666.40

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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.