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Finding the Fourth Proportional to 482,356.40, 722,821.80 and 349,516.40

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Solution

The fourth proportional to 482,356.40, 722,821.80 and 349,516.40 is: 523,758.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,356.40 : 722,821.80 = 349,516.40 : x
  2. Step 2: Convert to fraction form
    482,356.40/722,821.80 = 349,516.40/x
  3. Step 3: Cross multiply
    482,356.40x = 722,821.80 × 349,516.40
  4. Step 4: Simplify right side
    482,356.40x = 252,638,073,377.52
  5. Step 5: Solve for x
    x = 252,638,073,377.52/482,356.40
  6. Step 6: Final answer
    x = 523,758.10

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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.