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Finding the Fourth Proportional to 1,693,869.84, 2,337,544.31 and 929,972.61

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Solution

The fourth proportional to 1,693,869.84, 2,337,544.31 and 929,972.61 is: 1,283,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693,869.84 : 2,337,544.31 = 929,972.61 : x
  2. Step 2: Convert to fraction form
    1,693,869.84/2,337,544.31 = 929,972.61/x
  3. Step 3: Cross multiply
    1,693,869.84x = 2,337,544.31 × 929,972.61
  4. Step 4: Simplify right side
    1,693,869.84x = 2,173,852,178,311.49
  5. Step 5: Solve for x
    x = 2,173,852,178,311.49/1,693,869.84
  6. Step 6: Final answer
    x = 1,283,364.36

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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.