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Finding the Fourth Proportional to 1,230,942, 1,698,758.64 and 694,398

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Solution

The fourth proportional to 1,230,942, 1,698,758.64 and 694,398 is: 958,302.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,942 : 1,698,758.64 = 694,398 : x
  2. Step 2: Convert to fraction form
    1,230,942/1,698,758.64 = 694,398/x
  3. Step 3: Cross multiply
    1,230,942x = 1,698,758.64 × 694,398
  4. Step 4: Simplify right side
    1,230,942x = 1,179,614,602,098.72
  5. Step 5: Solve for x
    x = 1,179,614,602,098.72/1,230,942
  6. Step 6: Final answer
    x = 958,302.34

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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.