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Finding the Fourth Proportional to 1,873,401.12, 2,808,962.64 and 734,798.88

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Solution

The fourth proportional to 1,873,401.12, 2,808,962.64 and 734,798.88 is: 1,101,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873,401.12 : 2,808,962.64 = 734,798.88 : x
  2. Step 2: Convert to fraction form
    1,873,401.12/2,808,962.64 = 734,798.88/x
  3. Step 3: Cross multiply
    1,873,401.12x = 2,808,962.64 × 734,798.88
  4. Step 4: Simplify right side
    1,873,401.12x = 2,064,022,601,833.84
  5. Step 5: Solve for x
    x = 2,064,022,601,833.84/1,873,401.12
  6. Step 6: Final answer
    x = 1,101,751.56

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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.