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Finding the Fourth Proportional to 865,689.42, 1,194,648.85 and 483,716.51

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Solution

The fourth proportional to 865,689.42, 1,194,648.85 and 483,716.51 is: 667,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,689.42 : 1,194,648.85 = 483,716.51 : x
  2. Step 2: Convert to fraction form
    865,689.42/1,194,648.85 = 483,716.51/x
  3. Step 3: Cross multiply
    865,689.42x = 1,194,648.85 × 483,716.51
  4. Step 4: Simplify right side
    865,689.42x = 577,871,371,508.85
  5. Step 5: Solve for x
    x = 577,871,371,508.85/865,689.42
  6. Step 6: Final answer
    x = 667,527.36

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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.