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Finding the Fourth Proportional to 694,710, 958,699.80 and 376,758

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Solution

The fourth proportional to 694,710, 958,699.80 and 376,758 is: 519,926.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,710 : 958,699.80 = 376,758 : x
  2. Step 2: Convert to fraction form
    694,710/958,699.80 = 376,758/x
  3. Step 3: Cross multiply
    694,710x = 958,699.80 × 376,758
  4. Step 4: Simplify right side
    694,710x = 361,197,819,248.40
  5. Step 5: Solve for x
    x = 361,197,819,248.40/694,710
  6. Step 6: Final answer
    x = 519,926.04

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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.