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Finding the Fourth Proportional to 705,982.72, 973,891.20 and 437,244.16

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Solution

The fourth proportional to 705,982.72, 973,891.20 and 437,244.16 is: 603,170.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,982.72 : 973,891.20 = 437,244.16 : x
  2. Step 2: Convert to fraction form
    705,982.72/973,891.20 = 437,244.16/x
  3. Step 3: Cross multiply
    705,982.72x = 973,891.20 × 437,244.16
  4. Step 4: Simplify right side
    705,982.72x = 425,828,239,675.39
  5. Step 5: Solve for x
    x = 425,828,239,675.39/705,982.72
  6. Step 6: Final answer
    x = 603,170.91

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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.