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Finding the Fourth Proportional to 694,669.50, 958,643.91 and 376,717.50

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Solution

The fourth proportional to 694,669.50, 958,643.91 and 376,717.50 is: 519,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,669.50 : 958,643.91 = 376,717.50 : x
  2. Step 2: Convert to fraction form
    694,669.50/958,643.91 = 376,717.50/x
  3. Step 3: Cross multiply
    694,669.50x = 958,643.91 × 376,717.50
  4. Step 4: Simplify right side
    694,669.50x = 361,137,937,165.43
  5. Step 5: Solve for x
    x = 361,137,937,165.43/694,669.50
  6. Step 6: Final answer
    x = 519,870.15

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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.