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Finding the Fourth Proportional to 711,762.39, 982,200.74 and 436,035.96

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Solution

The fourth proportional to 711,762.39, 982,200.74 and 436,035.96 is: 601,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,762.39 : 982,200.74 = 436,035.96 : x
  2. Step 2: Convert to fraction form
    711,762.39/982,200.74 = 436,035.96/x
  3. Step 3: Cross multiply
    711,762.39x = 982,200.74 × 436,035.96
  4. Step 4: Simplify right side
    711,762.39x = 428,274,840,398.43
  5. Step 5: Solve for x
    x = 428,274,840,398.43/711,762.39
  6. Step 6: Final answer
    x = 601,710.41

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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.