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Finding the Fourth Proportional to 708,956.74, 978,687.93 and 437,073.22

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Solution

The fourth proportional to 708,956.74, 978,687.93 and 437,073.22 is: 603,363.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,956.74 : 978,687.93 = 437,073.22 : x
  2. Step 2: Convert to fraction form
    708,956.74/978,687.93 = 437,073.22/x
  3. Step 3: Cross multiply
    708,956.74x = 978,687.93 × 437,073.22
  4. Step 4: Simplify right side
    708,956.74x = 427,758,284,940.24
  5. Step 5: Solve for x
    x = 427,758,284,940.24/708,956.74
  6. Step 6: Final answer
    x = 603,363.03

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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.