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Finding the Fourth Proportional to 690,765.77, 953,286.27 and 384,842.04

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Solution

The fourth proportional to 690,765.77, 953,286.27 and 384,842.04 is: 531,098.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,765.77 : 953,286.27 = 384,842.04 : x
  2. Step 2: Convert to fraction form
    690,765.77/953,286.27 = 384,842.04/x
  3. Step 3: Cross multiply
    690,765.77x = 953,286.27 × 384,842.04
  4. Step 4: Simplify right side
    690,765.77x = 366,864,627,832.81
  5. Step 5: Solve for x
    x = 366,864,627,832.81/690,765.77
  6. Step 6: Final answer
    x = 531,098.45

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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.