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Finding the Fourth Proportional to 700,675.52, 966,933.28 and 398,869.52

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Solution

The fourth proportional to 700,675.52, 966,933.28 and 398,869.52 is: 550,440.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,675.52 : 966,933.28 = 398,869.52 : x
  2. Step 2: Convert to fraction form
    700,675.52/966,933.28 = 398,869.52/x
  3. Step 3: Cross multiply
    700,675.52x = 966,933.28 × 398,869.52
  4. Step 4: Simplify right side
    700,675.52x = 385,680,213,265.63
  5. Step 5: Solve for x
    x = 385,680,213,265.63/700,675.52
  6. Step 6: Final answer
    x = 550,440.54

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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.