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Finding the Fourth Proportional to 1,163,488.56, 1,745,271 and 321,969.84

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Solution

The fourth proportional to 1,163,488.56, 1,745,271 and 321,969.84 is: 482,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163,488.56 : 1,745,271 = 321,969.84 : x
  2. Step 2: Convert to fraction form
    1,163,488.56/1,745,271 = 321,969.84/x
  3. Step 3: Cross multiply
    1,163,488.56x = 1,745,271 × 321,969.84
  4. Step 4: Simplify right side
    1,163,488.56x = 561,924,624,626.64
  5. Step 5: Solve for x
    x = 561,924,624,626.64/1,163,488.56
  6. Step 6: Final answer
    x = 482,965.32

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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.