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Finding the Fourth Proportional to 711,757.81, 982,196.50 and 425,435.77

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Solution

The fourth proportional to 711,757.81, 982,196.50 and 425,435.77 is: 587,083.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,757.81 : 982,196.50 = 425,435.77 : x
  2. Step 2: Convert to fraction form
    711,757.81/982,196.50 = 425,435.77/x
  3. Step 3: Cross multiply
    711,757.81x = 982,196.50 × 425,435.77
  4. Step 4: Simplify right side
    711,757.81x = 417,861,518,294.23
  5. Step 5: Solve for x
    x = 417,861,518,294.23/711,757.81
  6. Step 6: Final answer
    x = 587,083.86

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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.