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Finding the Fourth Proportional to 711,763.89, 982,202.81 and 436,037.46

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Solution

The fourth proportional to 711,763.89, 982,202.81 and 436,037.46 is: 601,712.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,763.89 : 982,202.81 = 436,037.46 : x
  2. Step 2: Convert to fraction form
    711,763.89/982,202.81 = 436,037.46/x
  3. Step 3: Cross multiply
    711,763.89x = 982,202.81 × 436,037.46
  4. Step 4: Simplify right side
    711,763.89x = 428,277,216,297.08
  5. Step 5: Solve for x
    x = 428,277,216,297.08/711,763.89
  6. Step 6: Final answer
    x = 601,712.48

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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.