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Finding the Fourth Proportional to 598,791.40, 896,874.90 and 520,059.40

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Solution

The fourth proportional to 598,791.40, 896,874.90 and 520,059.40 is: 778,949.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,791.40 : 896,874.90 = 520,059.40 : x
  2. Step 2: Convert to fraction form
    598,791.40/896,874.90 = 520,059.40/x
  3. Step 3: Cross multiply
    598,791.40x = 896,874.90 × 520,059.40
  4. Step 4: Simplify right side
    598,791.40x = 466,428,222,369.06
  5. Step 5: Solve for x
    x = 466,428,222,369.06/598,791.40
  6. Step 6: Final answer
    x = 778,949.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.