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Finding the Fourth Proportional to 1,245,827.02, 1,719,241.31 and 672,867.04

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Solution

The fourth proportional to 1,245,827.02, 1,719,241.31 and 672,867.04 is: 928,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,827.02 : 1,719,241.31 = 672,867.04 : x
  2. Step 2: Convert to fraction form
    1,245,827.02/1,719,241.31 = 672,867.04/x
  3. Step 3: Cross multiply
    1,245,827.02x = 1,719,241.31 × 672,867.04
  4. Step 4: Simplify right side
    1,245,827.02x = 1,156,820,799,344.88
  5. Step 5: Solve for x
    x = 1,156,820,799,344.88/1,245,827.02
  6. Step 6: Final answer
    x = 928,556.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.