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Finding the Fourth Proportional to 705,694.52, 973,859.10 and 383,404.40

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Solution

The fourth proportional to 705,694.52, 973,859.10 and 383,404.40 is: 529,098.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,694.52 : 973,859.10 = 383,404.40 : x
  2. Step 2: Convert to fraction form
    705,694.52/973,859.10 = 383,404.40/x
  3. Step 3: Cross multiply
    705,694.52x = 973,859.10 × 383,404.40
  4. Step 4: Simplify right side
    705,694.52x = 373,381,863,920.04
  5. Step 5: Solve for x
    x = 373,381,863,920.04/705,694.52
  6. Step 6: Final answer
    x = 529,098.43

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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.