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Finding the Fourth Proportional to 484,624.94, 668,989.17 and 345,013.52

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Solution

The fourth proportional to 484,624.94, 668,989.17 and 345,013.52 is: 476,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,624.94 : 668,989.17 = 345,013.52 : x
  2. Step 2: Convert to fraction form
    484,624.94/668,989.17 = 345,013.52/x
  3. Step 3: Cross multiply
    484,624.94x = 668,989.17 × 345,013.52
  4. Step 4: Simplify right side
    484,624.94x = 230,810,305,038.63
  5. Step 5: Solve for x
    x = 230,810,305,038.63/484,624.94
  6. Step 6: Final answer
    x = 476,265.85

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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.