Home / 629,864.38-868,938.48-400,298.62

Finding the Fourth Proportional to 629,864.38, 868,938.48 and 400,298.62

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Solution

The fourth proportional to 629,864.38, 868,938.48 and 400,298.62 is: 552,237.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,864.38 : 868,938.48 = 400,298.62 : x
  2. Step 2: Convert to fraction form
    629,864.38/868,938.48 = 400,298.62/x
  3. Step 3: Cross multiply
    629,864.38x = 868,938.48 × 400,298.62
  4. Step 4: Simplify right side
    629,864.38x = 347,834,874,408.90
  5. Step 5: Solve for x
    x = 347,834,874,408.90/629,864.38
  6. Step 6: Final answer
    x = 552,237.73

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1.5x scale

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.