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Finding the Fourth Proportional to 1,226,648.48, 1,839,867.32 and 746,751.74

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Solution

The fourth proportional to 1,226,648.48, 1,839,867.32 and 746,751.74 is: 1,120,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,648.48 : 1,839,867.32 = 746,751.74 : x
  2. Step 2: Convert to fraction form
    1,226,648.48/1,839,867.32 = 746,751.74/x
  3. Step 3: Cross multiply
    1,226,648.48x = 1,839,867.32 × 746,751.74
  4. Step 4: Simplify right side
    1,226,648.48x = 1,373,924,109,646.04
  5. Step 5: Solve for x
    x = 1,373,924,109,646.04/1,226,648.48
  6. Step 6: Final answer
    x = 1,120,063.44

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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.