Home / 711,677.80-982,090.94-405,852.61

Finding the Fourth Proportional to 711,677.80, 982,090.94 and 405,852.61

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Solution

The fourth proportional to 711,677.80, 982,090.94 and 405,852.61 is: 560,062.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,677.80 : 982,090.94 = 405,852.61 : x
  2. Step 2: Convert to fraction form
    711,677.80/982,090.94 = 405,852.61/x
  3. Step 3: Cross multiply
    711,677.80x = 982,090.94 × 405,852.61
  4. Step 4: Simplify right side
    711,677.80x = 398,584,166,771.86
  5. Step 5: Solve for x
    x = 398,584,166,771.86/711,677.80
  6. Step 6: Final answer
    x = 560,062.67

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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.