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Finding the Fourth Proportional to 697,154.84, 962,092.84 and 391,250

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Solution

The fourth proportional to 697,154.84, 962,092.84 and 391,250 is: 539,935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,154.84 : 962,092.84 = 391,250 : x
  2. Step 2: Convert to fraction form
    697,154.84/962,092.84 = 391,250/x
  3. Step 3: Cross multiply
    697,154.84x = 962,092.84 × 391,250
  4. Step 4: Simplify right side
    697,154.84x = 376,418,823,650
  5. Step 5: Solve for x
    x = 376,418,823,650/697,154.84
  6. Step 6: Final answer
    x = 539,935.75

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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.